Top Ten Proposed Tall Buildings and Structures

The Top Ten
1 Kingdom Tower
2 X-Seed 4000

This looks absolutely massive, and apparently it can have 500 thousand to 1 million people inside it.

3 Shimizu Mega-City Pyramid
4 Dubai City Tower
5 Millennium Challenge Tower
6 Ultima Tower
7 Bionic Tower
8 Miapolis
9 India Tower
10 Port Tower
The Contenders
11 Twin Towers II
12 Green Float
13 Space Elevator
14 The Orbital Ring
15 The Launch Loop
16 StarTram Generation 2
17 Tokyo Tower of Babel
18 The Dutch Mountain
19 New City Tower of London
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