Traditional tram transit in front of skyscapers of Porta Garibaldi, Milan, Lombardy, Northern Italy, Italy, Europe

Modern glass skyscapers being built in Beijing, China

Manhattan, New York City, New York, USA. Manhattan seen from the Brooklyn Bridge.

Fruit bats and an Australian white ibis flying in front of Sydney city centre tower blocks, Sydney, New South Wales, Australia, Pacific

Berlin, Potsdamer Platz, modern architecture at twilight

Rooftop Bar, Hotel The Standard, Downtown L.A., Los Angeles, California, USA

Berlin, Potsdamer Platz, modern architecture at twilight

Cafe in front of Vancouver Art Gallery, Vancouver City Center, Faimont Hotel, Skyscaper, Canada, North America

Downtown L.A., Los Angeles, California, USA

Window cleaner cleaning the outside of a skyscaper building, Chicago, Illinois, USA

Port Louis, waterfront, downtown, city center, Mauritius, Africa