18 towers visited by Sim

Belem Tower

Big Ben

Burj Al Arab

Burj Khalifa

Dancing House

Eiffel Tower

Empire State Building

Fernsehturm Berlin

Galata Tower

Kuala Lumpur Tower

Maiden Tower

Montparnasse

Petronas Towers

Prague Astronomical Clock

Saint Mark's Campanile

The Shard

Tower of Pisa

White Tower of Thessaloniki