17 towers visited by Álvaro Alfredo Salazar
Belem Tower
Big Ben
Chrysler Building
Dancing House
Empire State Building
Fernsehturm Berlin
Flatiron Building
One World Trade Center
Petřín Lookout Tower
Po-i-Kalyan
Powder Tower
Prague Astronomical Clock
Santa Justa Lift
The Shard
Transamerica Pyramid
