19 towers visited by Andrey Nilov

30 St Mary Axe

Big Ben

Burj Al Arab

Dancing House

Dubai Marina

Eiffel Tower

Empire State Building

Flatiron Building

Freedom Tower

Main Tower

Montparnasse

Moscow City

OKO

Ostankino Tower

Powder Tower

Prague Astronomical Clock

Shukhov tower

Spasskaya Tower

The Shard