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There are just far too many styles of buildings, each worthy of a top 50: sacred buildings, homes, skyscrapers, theatres. This is a list showing the variety of architectural beauty across the globe.
Some will argue about the omissions - the Sydney Opera House, the Chrysler Building, Fallingwater - but consider this a starting point, a checklist of architectural must-sees for an eye-rewarding round-the-world trip.