18 towers visited by Sinchie Ng

Big Ben

Chungking Mansions

CN Tower

Eiffel Tower

Empire State Building

Fernsehturm Berlin

Flatiron Building

Kuala Lumpur Tower

Moscow City

OKO

Ostankino Tower

Petronas Towers

Saint Mark's Campanile

Spasskaya Tower

Sydney Tower Eye

Taipei 101 Observatory

Tower of Pisa

Towers of Bologna