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Osaka's landmark Sky Building (1993) resembles a 40-storey, space-age Arc de Triomphe. Twin towers are connected at the top by a 'floating garden' (really a garden-free observation deck), which was constructed on the ground and then hoisted up. The 360-degree city views from here are breathtaking day or night. Getting there is half the fun – an escalator in a see-through tube takes you up the last five storeys (not for vertigo sufferers). The architect, Hara Hiroshi, also designed Kyoto Station.