11Shinta Mani, Siem Reap, Cambodia
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This may be not be as big or grand as Umaid Bhawan Palace, but the 62 room hotel (also featuring a junior suite) offers splendid views and convenient access to a host of outdoor activities. Plus, it practices responsible tourism and supports local community outreach. A percentage of the tariff is diverted towards a foundation that works for the local community and environment.