Tallest Buildings and Structures either in existence, have existed, or proposed in history

Shimizu Mega City Pyramid - 6,575 ft.

Aeropolis 2001 - 6,565 ft.

Kingdom Tower - 3,200 ft.

Mile High Tower - 5,280 ft.

Sky City 1000 - 3,300 ft.

The Illinois - 5,680 ft.

Al Hamra Tower - 1,354 ft.

Azerbaijan Tower - 3,445 ft.

Bionic Tower - 4,029 ft.

Dubai City Tower - 7,874 ft.

Empire State Building - 1,454 ft.

Guangzhou International Finance Center - 1,440 ft.

HK International Finance Centre - 1,352 ft.

Jin Mao Tower - 1,380 ft.

John Hancock Tower - 1,127 ft.

KK 100 - 1,449 ft.

Mercury City Tower - 1,112 ft.

Millenium Challenge Tower - 6,076 ft.

Mubarak Al Hareer - 3,284 ft.

Q1 Gold Coast - 1,058 ft.

Ryugyong Hotel - 1,082 ft.

Shanghai Tower - 2,073 ft.

Shanghai World Financial Center - 1,614 ft.

Tokyo Tower of Babel - 32,808 ft.

Trump International Hotel - 1,389 ft.

Ultima Tower - 10,560 ft.

Willis Tower - 1,450 ft.

X-Seed 4000 - 13,123 ft.

Zifeng Tower - 1,476 ft.

23 Marina - 1,296 ft.

Chrysler Building - 1,046 ft.

GE Building - 850 ft.

Woolworth Building - 792 ft.

Trump World Tower - 861 ft.

CN Tower - 1,815 ft.

International Commerce Center - 1,588 ft. 

Taipei 101 - 1,670 ft.

Abraj Al Bait Clock Tower - 1,971 ft.

Burj Khalifa - 2,717 ft.

One World Trade Center - 1,776 ft.

Petronas Towers - 1,483 ft. each

CTF Finance Center - 1,740 ft.

Princess Tower -  1,358 ft.

Nordstrom Tower - 1,538 ft.

432 Park Ave. - 1,396 ft.

40 Wall Street - 927 ft.

Metropolitan Life Insurance Company Tower - 700 ft.

The Original Twin Towers of the World Trade Center - 1,368 ft.