worlds tallast buildings.

Question: What Is the World's Tallest Building?

 

 

  :-  It depends on who does the measuring! Skyscraper buffs disagree on whether features like flagpoles, antennas, and spires should be included when measuring building height.

Also under dispute is the question of what, exactly, constitutes a building. Technically, observation towers and communications towers are considered structures, not buildings, because they are not habitable. They do not have residential or office space.
So, who are the contenders?

The Burj Dubai

Soaring 828 meters (2,717 feet) the Burj Dubai in the United Arab Emirates is now considered the world's tallest building. Keep in mind, however, that these statistics include the skyscraper's enormous spire.

The Taipei 101 Tower

Measuring 509 meters (1,670 feet) tall, the Taipei 101 Tower in Taipei, Taiwan is widely considered the world's second tallest building. But, like the Burj Dubai, the Taipei 101 Tower gets much of its height from a huge spire.

Petronas Twin Towers

Before the Taipei 101 Tower was built, the Petronas Twin Towers in Kuala Lumpur, Malaysia were described as the tallest buildings in the world. Once again, the Petronas Towers get much of their height from spires, not from usable space.

Sears Tower

If you count only habitable space and measure from the sidewalk level of the main entrance to the structural top of building (excluding flagpoles and spires), then Chicago's Sears Tower ("Willis Tower"), built in 1974, still ranks among the tallest buildings in the world.

One World Trade Center

For awhile it was thought that New York's new World Trade Center skyscraper, One World Trade Center ("Freedom Tower"), would become the world's tallest building. But security concerns lead designers to scale down their plans. One World Trade Center will rise 541 meters (1,776 feet), but much of that height will be in it's needle-like spire. The structural height of One World Trade Center will be 417 meters (1,368 feet). Sears Tower in Chicago and the Jin Mao Building in Shanghai are taller.

CN Tower

Now, supposing we included spires, flagpoles, and antennas when measuring building heights. In that case, it might not make sense to distinguish between buildings and towers when ranking building heights. If we rank all man-made structures, whether or not they contain habitable space, then we'd have to give high rankings to the Tokyo Sky Tree in Japan, measuring 625 meters (1,998 feet). Next in running is China's Canton Tower, which measures 600 meters (1,968.5 ft). Finally, there's the famous CN Tower in Toronto, Canada. Measuring 553.33 meters (1,815 ft., 5 inches) tall, the CN Tower was the world's tallest tower for many years.

 

 

                                               World's Tallest Buildings  :-

WORLD'S TALLEST BUILDINGS RANKED

Building & Location	Year	Stories	Height meters / feet		Chief  Architect
Burj Khalifa (Burj Dubai, or Dubai Tower), Dubai, UAE	2010	162	828	2,717	Skidmore, Owings & Merrill
Busan Lotte World II Busan S. Korea (proposed)	2015?	110	510.55	1,674	Skidmore, Owings and Merrill
Taipei 101 Tower Taipei, Taiwan	2004	101	509	1,670	C.Y. Lee & Partner
Shanghai World Financial Center, China	2008	101	492	1,614	Kohn Pedersen Fox
International Commerce Centre (ICC), Hong Kong, China (under construction)	2010	118	484	1,587.9	Kohn Pedersen Fox
Xujiahui Tower, Shanghai, China (proposed)	2010	92	460	1,509	John Portman & Associates
Petronas Towers 1 & 2, Kuala Lumpur, Malaysia	1998	88	452	1,483	Cesar Pelli
The Gateway III, Hong Kong, China (proposed)	?	?	450	1,476	Wong & Ouyang
Willis Tower (formerly Sears Tower), Chicago	1974	110	442	1,450	Bruce Graham (SOM)
Jin Mao Building, Shanghai	1999	88	421	1,381	Skidmore, Owings & Merrill
Dalian International Trade Center, Dalian China (on hold)	?	78	420	1,378	Dalian Architectural Design & Research Institute
One World Trade Center (Freedom Tower) New York (under construction)	2013	82	417	1,368 (1,776 with spire)	David Childs, SOM
World Trade Center Twin Towers, New York Destroyed by terrorists 9/11/01	1973	110	417	1,368	Minoru Yamaski
Two International Finance Centre (IFC), Hong Kong	2003	88	414	1,362	Cesar Pelli
CITIC Plaza, China International Trust, Guanzhou	1997	80	391	1,283	DLN Architects
North Bund Tower, Shanghai, China (proposed)	?	72	321	1,053	John Portman & Associates
Shun Hing Square, Shenzhen, China	1996	69	384	1,260	K.Y. Cheung Design Assc.
Empire State Building, New York	1931	102	381	1,250	Shreve, Lamb and Harmon
Central Plaza, Hong Kong	1992	78	374	1,227	Ng Chun Man
Bank of China Tower, Hong Kong	1989	70	369	1,209	Ieoh Ming Pei
Bank of America Tower, New York City USA	2009	54	366	1,200	Cook Fox
Millenium Tower Frankfurt Germany (proposed)	2011?	91	365	1,198	Albert Speer & Partner GmbH
Emirates Tower One, Dubai	1999	54	355	1,165	Norr Group Consultants Int. Ltd., Hazel W.S. Wo
T & C Tower (Tuntex Sky Tower), Kaoshiung, Taiwan	1997	85	348	1,140	C.Y. Lee & Partners and Hellmuth, Obata & Kassabaum
Aon Centre, Chicago	1973	80	346	1,136
The Center, Hong Kong	1998	73	346	1,135	Dennis Lau & Ng Chun Man Architects & Engineers
John Hancock Center, Chicago	1969	100	344	1,127	Bruce Graham, SOM
Rose Tower, Dubai, UAE	?	72	333	1,093	Khatib & Alami
Shimao International Plaza, Shanghai, China	2005	60	333	1,093	East China Architecture and Design Institute
Wuhan International Securities Building, Wuhan	2005	68	331	1,087
Ryugyong Hotel, Pyongyang, N. Korea	1995	105	330	1,083
Q1 Tower, Gold Coast, Australia	2005	78	323	1,058	Sunland Group Ltd., The Buchan Group
Burj al Arab Hotel, Dubai	1998	60	321	1,053
Chrysler Building, New York	1930	77	319	1,046	William Van Alen
Bank of America, Atlanta	1993	55	312	1,023
U.S. Bank Tower, Los Angeles	1990	75	310	1,018
Menara Telekom Headquarters, Kuala Lumpur	1999	55	310	1,017
Emerates Tower Two, Dubai	1999	56	309	1,114	Norr Group Consultants Int. Ltd., Hazel W.S. Wo
AT&T Corporate Center, Chicago	1989	60	307	1,007
JP Morgan Chase Tower, Houston	1982	75	305	1,000
Baiyoke Tower II, Bangkok	1997	85	304	997
Two Prudential Plaza, Chicago	1990	64	303	995
Kingdom Centre, Riyadh	2002	41	302	992
Ryugyong Hotel, Pyongyang, N. Korea	1995	105	300	984
First Canadian Place, Toronto	1975	72	298	978
Eureka Tower, Melbourne, Australia	2006	91	297	975	Fender Katsalidis Architects
Wells Fargo Plaza, Houston	1983	71	296	972
Landmark Tower, Yokohama, Japan	1993	70	296	971
311 South Wacker Drive, Chicago	1990	65	293	961
SEG Plaza, Shenzhen	2000	71	292	957
American International Building (AIG), New York	1932	66	290	952	Clinton and Russell, Holton & George
Key Tower, Cleveland	1991	57	289	947	Cesar Pelli
Plaza 66, Shanghai	2001	66	288	945
One Liberty Place, Philadelphia	1987	61	288	945
Bank of America Center, Seattle	1985	76	285	937
Sunjoy Tomorrow Square, Shanghai	2003	55	285	934
Cheung Kong Center, Hong Kong	1999	63	283	929
Chongqing World Trade Center, Chongqing	2005	60	283	929
The Trump Building, New York	1930	72	283	927
Bank of America Plaza, Dallas	1985	72	281	921
Overseas Union Bank Centre, Singapore	1986	66	280	919
United Overseas Bank Plaza, Singapore	1992	66	280	919
Republic Plaza, Singapore	1995	66	280	919
Citicorp Center, New York	1977	59	279	915
Hong Kong New World Tower, Shanghai	2002	61	278	913
Scotia Plaza, Toronto	1989	68	275	902
Williams Tower, Houston	1983	64	275	901
Renaissance Tower, Dallas	1975	56	270	886
Dapeng International Plaza, Guangzhou	2004	56	269	883
21st Century Tower, Dubai	2003	55	269	883
900 North Michigan Ave., Chicago	1989	66	265	871
Bank of America Corporate Center, Charlotte	1992	60	265	871
SunTrust Plaza, Atlanta	1992	60	265	871
Triumph Palace, Moscow	2004	61	264	866
Shenzhen Special Zone Daily Tower, Shenzhen	1998	42	264	866
Tower Palace Three, Tower G, Seoul	2004	73	264	865
Trump World Tower, New York	2001	72	262	861
Grand Gateway: Office Tower One, Shanghai, China	2005	55	262	859
Water Tower Place, Chicago	1976	74	262	859
Aon Center, Los Angeles	1974	62	262	858
BCE Place-Canada Trust Tower, Toronto	1990	51	261	856
Transamerica Corporate Headquarters, San Francisco	1972	48	260	853
Commerzbank Tower, Frankfurt	1997	56	259	850
GE Building, New York	1933	70	259	850
Bank One Plaza, Chicago	1969	60	259	850
Two Liberty Place, Philadelphia	1990	58	258	848
Philippine Bank of Communications, Makati	2000	55	258	848
Park Tower, Chicago	2000	67	257	844
Messeturm, Frankfurt	1990	63	257	843
Sorrento 1, Hong Kong	2003	75	256	841
U.S. Steel Tower, Pittsburgh	1970	64	256	841
Mok-dong Hyperion Tower A, Seoul	2003	69	256	840
Rinku Gate Tower, Osaka	1996	56	256	840
The Harbourside, Hong Kong	2003	74	255	837
Langham Place Office Tower, Hong Kong	2004	59	255	837
Capital Tower, Singapore	2000	52	254	833
Highcliff, Hong Kong	2003	73	253	831
World Trade Center, Osaka	1995	55	252	827
Bank of Shanghai Headquarters, Shanghai	2005	46	252	827
Jiali Plaza, Wuhan	1997	61	251	824
Rialto Towers, Melbourne	1986	63	251	824	Gerard de Preu / Perrott Lyon Mathieson
One Atlantic Center, Atlanta	1988	50	250	820
Chelsea Tower, Dubai	2005	49	250	820
Wisma 46,Jakarta	1995	46	250	820
Korea Life Insurance Company, Seoul	1985	60	249	817
CitySpire, New York	1989	75	248	814
One Chase Manhattan Plaza, New York	1961	60	248	813
State Tower, Bangkok	2001	68	247	811
Bank One Tower, Indianapolis	1989	48	247	811
Condé Nast Building, New York	1999	48	247	809
MetLife, New York	1963	59	246	808
Bloomberg Tower, New York	2004	55	246	806
JR Central Towers, Nagoya	2000	51	245	804
Shin Kong Life Tower, Taipei, Taiwan	1993	51	244	801
Malayan Bank, Kuala Lumpur, Malaysia	1988	50	244	799
Tokyo City Hall, Tokyo	1991	48	243	797
Woolworth Building, New York	1913	57	241	792	Cass Gilbert
Mellon Bank Center, Philadelphia	1991	54	241	792
John Hancock Tower, Boston	1976	60	240	788	I. M. Pei
Deutsche Bank Place: 126 Phillip Street, Sydney, Australia	2005	39	240	787
Bank One Center, Dallas	1987	60	240	787
Commerce Court West, Toronto	1973	57	239	784
Moscow State University, Moscow	1953	26	239	784
Vista Tower (formerly Empire Tower), Kuala Lumpur, Malaysia	1994	62	238	781
NationsBank Center, Houston	1984	56	238	780
Roppongi Hills Mori Tower, Tokyo, Japan	2003	54	238
Bank of America Center, San Francisco	1969	52	237	779
Worldwide Plaza, New York	1989	47	237	778
One Canada Square, London	1991	50	237	777
IDS Center, Minneapolis	1973	52	236	775
U.S. Bank Place, Minneapolis	1992	58	236	774
Norwest Center, Minneapolis	1988	57	235	773
Treasury Building, Singapore	1986	52	235	770
One Ninety One Peachtree Tower, Atlanta	1991	50	235	770
Opera City Tower, Tokyo	1997	54	234	768
Shinjuku Park Tower, Tokyo	1994	52	233	764
Heritage Plaza, Houston	1987	52	232	762
Suzhou Xindi Center, Suzhou, China	2005	54	232	761
Kompleks Tun Abdul Razak Building, Penang, Malaysia	1985	65	232	760
The Arch, Hong Kong, China	2005	65	231	758
Palace of Culture and Science, Warsaw	1955	42	231	758
Carnegie Hall Tower, New York	1991	60	231	757
Three First National Plaza, Chicago	1981	57	230	753
Equitable Tower, New York	1986	51	229	752
MLC Centre, Sydney	1978	65	229	751
One Penn Plaza, New York	1972	57	229	750
1251 Avenue of the Americas, New York	1972	54	229	750
Prudential Center, Boston	1964	52	229	750
Two California Plaza, Los Angeles	1992	52	229	750
Gas Company Tower, Los Angeles	1991	54	228	749
Two Pacific Place/Shangri-La Hotel, Hong Kong	1991	56	228	748
1100 Louisiana Building, Houston	1980	55	228	748
Korea World Trade Center, Seoul	1988	54	228	748
Governor Phillip Tower, Sydney	1993	64	227	745

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types of coloumn.

   The columns that hold up your porch roof may look simple, but their history is long and complicated. Some columns trace their roots to the Classical Orders of Architecture. Others find inspiration in Moorish or Asian building traditions. Browse this illustrated guide to find column types, column styles, and column designs through the centuries.

Doric Column

With a plain capital and a fluted shaft, Doric is the earliest and most simple of the Classical column styles developed in ancient Greece. 

 

Ionic Column

More slender and more ornate than the earlier Doric style, an Ionic column has scroll-shaped ornaments on the capital, or top.

Corinthian Column

The Corinthian style is more complex and elaborate than the earlier Doric and Ionic styles. The capital, or top, of a Corinthian column has lavish ornaments carved to resemble leaves and flowers.

 

Tuscan Column

Developed in ancient Italy, a Tuscan column resembles a Greek Doric column, but it has a smooth shaft.

 

Composite Column

In about the first century BC, the Romans combined the Ionic and the Corinthian orders of architecture to create a composite style.

 

Solomonic Column

Solomonic columns with twisted, spiraling shafts have ornamented buildings since ancient times. Over the centuries, many cultures have adopted the Solomonic column style.

 

Egyptian Column

Brightly painted and elaborately carved, columns in ancient Egypt often mimicked palms, papyrus plants, and other plant forms. Nearly 2,000 years later, architects in Europe and the United States borrowed Egyptian motifs and Egyptian column styles.

 

Persian Column

During the fifth century BC, builders in the land that is now Iran carved elaborate columns with images of bulls and horses. The unique Persian column style was imitated and adapted in many parts of the world.