Burj Khalifa
The world's tallest building in Dubai
Colosseum
Ancient Rome's iconic amphitheater
Eiffel Tower
Parisian iron lattice landmark
Fallingwater
Frank Lloyd Wright's masterpiece over a waterfall
Sagrada Familia
Gaudi's unfinished basilica in Barcelona
Sydney Opera House
Sculptural sails on Sydney Harbour
Villa Savoye
Le Corbusier's modernist vision of domestic life