The London Eye on the Thames was part of the Millennium celebrations in London, opening on 31 December 1999. It remains the highest observation wheel in the world at 135 m (nearly 450 ft). If you buy ...
Daejeon will build a 215-meter (705.38-foot) observation tower and a network of cable cars and monorails on Mount Bomun, a mountain in the center of the city, as part of a sweeping tourism development ...
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