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

One of the most exquisite Lycian hilltop citadels in Turkey.

All that remains of an ancient royal palace is a water channel that was used for drinking games.

This vibrant side road in Doha was painted light blue to reduce heat.

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

One of the world's tallest flagpoles.

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.

An ancient fortification lives on in this Chinese city.

A roadway designed for a visiting monarch.

A brutalist gem towering over the heart of Milan.

Singapore's oldest Hindu temple.

Cavemen, elephants, and eagles greet passengers driving through the town's main intersection.

This Bangkok high-rise looks like a rudimentary LEGO elephant.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

A 19th-century architectural masterpiece with ties to Gustave Eiffel.

A secluded, little-known temple hidden amid the dense jungle.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

A Turkish ghost town abandoned in a population exchange with Greece.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Roman ruins, natural methane fires and a lovely beach.

Flames have been burning within this mountain for more than 2,500 years.

The best-preserved ancient theater in the world.