21 towers visited by Isabel Sang
Belfry of Bruges
Bell Tower
Big Ben
Burj Al Arab
Burj Khalifa
Clock tower of BCEE
CN Tower
Colonius
Eiffel Tower
El Miguelete
Fat Margarita Tower
Fernsehturm Berlin
Isartor
Maiden's Tower
Main Tower
Montparnasse
Old Town Hall
Santa Justa Lift
Torre del Oro
