This is the central tower of East Mebon, a temple that was once on an artificial island in the East Baray. Built in the 10th century by King Rajendravarman to honor his parents, East Mebon is dedicated to Shiva. On the corners of the first and second levels are carved elephants which serve to differentiate Eat Mebon from stylistically similar temples like Pre Rup.
Canon 1D X, Canon 16-35/f2.8L Mark II
16mm, f11, merged layers of 1/400, 1/100, and 1/50 sec @ 100 ISO