21 towers visited by Laurence Simes
Belfry of Bruges
Big Ben
Burj Al Arab
Burj Khalifa
Chrysler Building
Dancing House
Eiffel Tower
Empire State Building
Fernsehturm Berlin
Flatiron Building
Galata Tower
Montparnasse
One World Trade Center
Ostankino Tower
Powder Tower
Prague Astronomical Clock
Saint Mark's Campanile
Spasskaya Tower
Tower of Pisa
