23 towers visited by Barry Sims
Belem Tower
Big Ben
Burj Al Arab
Burj Khalifa
Canton Tower
Chrysler Building
Donauturm
Eiffel Tower
Empire State Building
Fernsehturm Berlin
Flatiron Building
Galata Tower
Isartor
Montparnasse
Old Town Hall
One World Trade Center
Space Needle
Taipei 101 Observatory
The Shard
Tower of Pisa
Towers of Bologna
