The remote island home of the overlooked explorer who co-discovered the theory of evolution by natural selection.

This Javanese-Hindu temple from the 15th century is unmissable for anyone with even a passing interest in erotic art.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

A mud volcano in Indonesia spews out 50,000 cubic meters of mud every day.

Where cemeteries are carved into the side of cliffs and infants are buried in the hollows of trees.

Hundreds of Buddhas in a re-discovered Indonesian temple.

Three wildly colorful calderas top this otherworldly volcano chain.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

A sprawling nature preserve harbors the world's only living dragons.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

History, geography, and shamanism meet in this eye-catching monument to the greatness of three empires.

Dinosaur eggs were first discovered at these fiery red cliffs.

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.

The oldest Buddhist monastery in Mongolia has survived centuries of invasions, political shifts, and religious purges.

Enormous statue of the Emperor of the Mongols.

This mosque turned crypt is an amazing display of Persian-Islamic architecture.

The largest covered bazaar in the world.

This remote mountain shrine is one of the most sacred Zoroastrian temples remaining in the world.

The most sacred Jewish shrine in Iran and a fine example of restoration works gone wrong.

Marked by the hand of the explorer Henry Morton Stanley.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.