Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

The Avenue of Mausolea is a series of grand palatial tombs.

Controversially restored in the 1970s, this giant 15th-century mosque is shrouded in legend.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

A boulder carved into the shape of the cosmonaut's head.

According to myth, there's a bloody explanation for the beautiful bright red color of this rock formation set amidst alpine vegetation.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

A stunning blue-green lake located in the Terskey Alatau mountain range.

On the shores of Kyrgyzstan's Issyk-Kul Lake, a family cooks a feast that tells the sad tale of a people's exile.

Light still pours into the ruins of this ancient Islamic observatory.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Romania's triumphal arch looks out over Bucharest.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This once-derelict building is now one of the most beautiful bookstores in the world.

An automaton perched above an classic clock and watch store

An actual piece of the Moon, brought down to Earth by Apollo 15.

This classic steam-powered train takes tourists on a nostalgic trip around the Connecticut River Valley.

A parade of antique steeds offers a quirky ride through history.

The world's largest public collection of PEZ memorabilia.

Amazing views of Long Island Sound can be seen from this mountaintop tower.