Here is a list of the tallest buildings in the world, as of mid-2005. You might want to note that, until their destruction in September 2001, the World Trade Center towers were ranked 5th and 6th.

#	Building	City	Completed	Height (Feet/Meters)	Stories
1	Taipei 101	Taipei, Taiwan	2004	1670/510	101
2	Petronas #1	Kuala Lumpur, Malaysia	1996	1483/452	88
3	Petronas #2	Kuala Lumpur, Malaysia	1996	1483/452	88
4	Sears Tower	Chicago, Illinois	1974	1450/442	110
5	Jin Mao Bldg.	Shanghai, China	1998	1380/421	88
6	2 International Finance Centre	Hong Kong, China	2003	1362/415	88
7	CITIC Plaza	Guangzhou, China	1996	1283/391	80
8	Shun Hing Square	Shenzhen, China	1996	1260/383	69
9	Empire State Bldg.	New York, New York	1931	1250/381	102
10	Central Plaza	Hong Kong, China	1992	1227/374	78
11	Bank of China	Hong Kong, China	1989	1209/369	70
12	Tuntex Sky Tower	Kaoshiung, Taiwan	1997	1140/347	85
13	Aon Centre	Chicago, Illinois	1973	1136/346	80
14	The Center	Hong Kong, China	1998	1135/346	73
15	John Hancock Ctr.	Chicago, Illinois	1969	1127/344	100
16	Ryugyong Hotel	Pyongyang, North Korea	1995	1083/330	105
17	Burj al Arab Hotel	Dubai, UAE	1999	1053/321	60
18	Chrysler Bldg.	New York, New York	1930	1046/319	77
19	Bank of America Plaza	Atlanta, Georgia	1992	1023/312	55
20	US Bank Tower	Los Angeles, CA	1990	1018/310	73
21	Menera Telecom HQ	Kuala Lumpur, Malaysia	1999	1017/310	55
22	Emirates Tower Two	Dubai, UAE	2000	1014/309	56
23	AT&T Corporate Center	Chicago, Illinois	1989	1007/307	60
24	JP Morgan Chase Tower	Chicago, Illinois	1982	1002/305	75
25	Baiyoke Tower II	Bangkok, Thailand	1989	997/304	85