Temple 2, Bagan, Myanmar
The Buddha image that is barely visible through the doorway (especially at the larger sizes) can be seen here http://goo.gl/q9anG.
The fantastic temple complex of Bagan rivals Angor Wat for its number of temples, but is not as well known since Myanmar was closed to tourism for so long. Bagan is on the plains of the Irrawaddy River west of Mandalay. Between the 11th and 13th century over 10,000 temples and stupas were built there, of which around 2000 remain. Roughly speaking, a stupa is a solid structure that can't be entered and a temple has an interior that contains images, usually statues of Buddhas.