Last year TripAdvisor named Angkor Wat the number one landmark to visit in the world. So it's no surprise that more than two millions tourists flocked to the site in 2016. Many probably went at sunrise to vie for the perfect shot.

Spanning 400 acres, this elaborate complex of temples was constructed in the 12th century as a Hindu temple. Today it's Buddhist and often considered the world's largest religious monument. Rising straight out of the Cambodian jungle, it's a must-see attraction, despite the crowds.