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This is also a Hindu temple created in the 11th century, but it has UNESCO World Heritage Site status and also has written relics from the 4th century. Unfortunately, it's at the end of a long road, so it involves quite a bit of travel.
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In the 11th century, Khmer Empire king Suryavarman I built this temple to the Hindu deities Shiva and Vishnu. Known originally as The Mountain of Surya[varman] (The mountain of the Sun), it is perched atop a hill, and you can see a unique symmetric pattern of landscaping if you look below from up top (see image).