Crazy House (Hằng Nga Guesthouse), Đà Lạt

An extraordinary building designed by architect Đặng Việt Nga, looking like a giant tree melting into the hillside, with staircases, tunnels and bridges winding between rooms shaped like caves and spider webs. You can wander through it as a sightseer, or stay in one of its oddly themed rooms.

Đà Lạt is a cool hill-station town in the Central Highlands, about 300 km from Ho Chi Minh City at 1,500 m, with a pleasant climate all year. It's known for flowers, coffee, French colonial villas, and as a favourite honeymoon spot for Vietnamese couples.