24 towers visited by Tony Hewitt
Bell Tower
Big Ben
Burj Khalifa
Dancing House
Eiffel Tower
Empire State Building
Euromast
Flatiron Building
Freedom Tower
Isartor
Michael's Gate
Old Town Hall
Petřín Lookout Tower
Powder Tower
Saint Mark's Campanile
Santa Justa Lift
Shanghai Tower
Supertree Grove
Taipei 101 Observatory
The Shard
Torre Monumental
Towers of Bologna
