The old Chinese capital of Xi'an is a charming city with a vast history. It's home to the Qin Shi Huang Mausoleum and the Museum of Qin Terracotta Warriors. Even more so, here you can hike one of China's 5 great mountains, Mt. Huashan. Within the city itself, visits to the Bell and Drum Towers, Giant Wild Goose Pagoda, as well as the Xi'an city walls, are must dos.
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Everything you need to know about seeing Istanbul
As the only city located on two continents (Europe and Asia), you could say Istanbul is double the fun. The attractions of this city are endless: Topkapi Palace, Blue Mosque, Hagia Sophia, Galata bridge and tower, Taksim Square, Grand Bazaar, Basilica Cistern, and the Maiden's Tower are a great way to get started to discovering the identity of this amazing city.
Read MoreA look at the Central European capital of Prague
in Prague, Czech Republic, UNESCO, Europe