Rank 2006	CAHTT*	Tier		Rank 2005	CAHTT*	Tier		Rank 2004	CAHTT*	Tier
	New York City 9/10***	1015.5			New York City 9/10***	1015.5			New York City 9/10***	1015.5
1	Chicago	995.1	1A	1	Chicago	995.1	1A	1	Chicago	995.1	1A
2	Hong Kong	982.9	1A	2	Hong Kong	955.5	1A	2	Hong Kong	955.5	1A
3	New York City	904.3	1B	3	New York City	904.3	1B	3	New York City	903.8	1B
4	Shanghai	896.8	1B	4	Kuala Lumpur	896.0	1B	4	Kuala Lumpur	896.0	1B
5	Kuala Lumpur	896.0	1B	5	Shanghai	894.0	1B	5	Shanghai	863.2	1B
6	Dubai	822.1	2	6	Houston	809.8	2	6	Houston	809.8	2
7	Houston	809.8	2	7	Shenzhen	798.9	2	7	Shenzhen	793.5	2
8	Shenzhen	803.7	2	8	Toronto	781.0	2	8	Toronto	776.3	2
9	Singapore	790.3	2	9	Singapore	772.3	2	9	Singapore	772.3	2
10	Toronto	781.0	2	10	Dubai	772.1	2	10	Los Angeles	767.1	2
11	Los Angeles	767.1	2	11	Los Angeles	767.1	2	11	Tokyo	764.8	2
12	Tokyo	764.8	2	12	Tokyo	764.8	2	12	Seoul	752.0	2
13	Seoul	752.0	2	13	Seoul	752.0	2	13	Atlanta	732.0	2
14	Atlanta	741.4	2	14	Atlanta	732.0	2	14	Dubai	721.1	2
15	Guangzhou	735.5	2	15	Dallas**	717.3	2	15	Dallas**	717.3	2
				16	Sydney**	715.8	2	16	Sydney**	710.5	2
				17	Bangkok**	707.5	2	17	Bangkok**	707.5	2
				18	Melbourne**	697.3	3	18	Guanzhou	688.5	3
				19	Guanzhou	688.5	3	19	Melbourne**	686.1	3
				20	Wuhan**	672.0	3	20	Seattle**	661.0	3
				21	Chongqing**	662.5	3	21	Philadelphia**	652.7	3
				22	Seattle**	661.0	3	22	Frankfurt**	651.3	3
				23	Frankfurt**	653.7	3	23	Manila**	649.1	3
				24	Philadelphia**	652.7	3	24	San Francisco**	635.1	3
				25	Manila**	649.1	3	25	Boston**	625.5	3
				26	San Francisco**	635.1	3	26	Wuhan**	619.8	3
				27	Boston**	625.5	3	27	Taipei	609.6	3
				28	Taipei	620.7	3	28	Osaka**	603.9	3
				29	Osaka**	603.9	3	29	Chongqing**	590.2	3

*The CAHTT is the “Calculated Average Height of the Ten Tallest” buildings and towers of each city,

as described in the Methodology page. See also Ten Tallest Cities, and The Rise and Fall of the American Skyscraper.

** Scores under review. See Methodology for details.

***The score for New York City 9/10 is what it would have been for New York, had the World Trade Center Towers

not been destroyed.

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