[coth]

I would not call FT C as a mast. It is very unique concept there. It is architectural part of complex. It's also has own occupancy - elevators, bridges with bars and other stuff.

As of City Hall. There are four independent towers with 8 skybridges and with huge skybridge in form of letter M(oscow). The space between towers is free.

Moscow Top 10 Tallest proposed/approved/uc/built

1. Russia Tower. 600m 118f. approved.
2. FederationTower C. 448m 130f. u/c.
3. Mercury City Tower. 380m 70f. u/c.
4. East FederationTower. 354m 93f u/c.
5. One City Hall and City Duma. 308m 71f. u/c.
6. Two City Hall and City Duma. 308m 71f. u/c.
7. Three City Hall and City Duma. 308m 71f. u/c.
8. Four City Hall and City Duma. 308m 71f. u/c.
9. Golden Age. 306m 85f. approved.
10. 12 IBC. 305m 67f. u/c.

also three 93 storeys proposals with unknown height could be taller of place 10.