Oriental bazaar in the heart of Sarajevo.

The first mosque in the world to receive electricity.

A monument on the pavement marks the spot where two cultures that shaped Sarajevo come together.

A mummy and sarcophagus are part of the many wonders in this library's collection.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

A toxic ghost town sitting atop a massive coal fire.

An underground blaze turned this village into a ghost town.

A eight-foot-tall statue resides in the heart of Pennsylvania anthracite coal country.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

One man handcrafts "the best sake made outside of Japan" in a tiny desert town on Route 66.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

Time travel with sweets across history at this research-based candy store.

Hidden within an idyllic suburban garden is a memorial dedicated to the victims of a terrifying spree of killings committed on U.S. soil.

One of the largest collections of Catalan literature and cultural materials outside of Spain, created by a community of 1960s expats.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An astounding collection of medical specimens, including bits of President Lincoln.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

The national park was once a plantation estate.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.