Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

Iran's colorful terraces are a rare geological masterpiece.

A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war.

A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran.

The palace of the King of Kings, burned by Alexander the Great.

Smoked mummies housed in mountainside caves.

This burial cave houses around 100 ancient coffins, neatly stacked to form a massive wall.

A vast personal collection of World War II artifacts unearthed over many years by a father-son duo.

It is believed that the historic tower is sinking at a rate of an inch a year, though no one is completely sure why.

This belfry is all that remains of the town that was buried by a violent volcano eruption.

A cemetery and the town it served sinks beneath the sea during the volcanic birth of Mt. Vulcan.

Five miles of underground river link lake to ocean.

Some locals believe the fabled lost gold of General Yamashida is hiding somewhere beneath the city.

Hundreds of wooden coffins dangle from cliffs and caves in the Philippines.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

Officially the lowest mountain in Japan.

A site where ten to twenty thousand Edo-era prisoners were put to death.

This infamous execution site inspired the beginning of Japan's modernization in the late 18th-century.

Existing for more than four centuries, the last of Hakone’s historic teahouses serves a sweet, mold-based rice drink.

One in a pair of subterranean caves created by an ancient eruption of Mount Fuji.

Believed to hold the remains of Japan's most infamous fox spirit, this stone is said to kill those who dare approach.

The former home of queer novelist Yoshiya Nobuko memorializes her contributions to modern-day manga.

The largest archaeological site from the Yayoi period.