One of Indiana's only natural sandstone arches is nestled between resort ruins and an old Boy Scouts camp.

Impressive sink holes fill this untouched old-growth forest in the Bahamas.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

Come for the 14-foot-long taxidermy alligator. Stay for the mini costumed gators shooting pool.

In the hills of southern Indiana is the idyllic studio and museum of legendary artist T.C. Steele.

A stone marker dedicated to a Black veteran of the American Revolution who refused to leave his land near Walden Pond.

An amalgam of precariously balanced boulders, ancient petroglyphs, and Buddhist shrines.

The largest civilian satellite control center in the world is located in the middle of a drained lake.

This was the second largest mercury mine in the world and one of the oldest preserved mine complexes in Europe.

A somber memorial honors the hundreds of thousands of lives lost at this labor and extermination camp.

Daikon radishes are offered to the Japanese Buddhist counterpart of the Hindu god Ganesha at this historic hilltop temple.

A fortress on this island housed the mysterious prisoner known as the "Man in the Iron Mask" for more than a decade.

The Grand Mall in Varna hosts one of the biggest collections of Soviet-era paraphernalia in Bulgaria.

This collection of ferns from across the globe is the largest assortment in the United States.

A missing Roman legion was recreated in sculpture along a Scottish cycling route.

This sculpture may be the only known depiction of a man who helped finance the American Revolution and inadvertently created the dollar sign.

The cafe that acts as the social hub for the small volcanic island of HMS Bounty fame.

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

In the Monastery of São Vicente resides a gallery devoted to a breathtaking collection of seashells.

This rare surviving broch is one of Scotland's most impressive Bronze Age structures.

Established in 1890, this Jacksonville institution is the longest running music venue in the state of Florida.

A sprawling maze of used books piled from floor to ceiling.

What started as a collection of vintage tractors turned into a museum filled with cars, radios, and other oddities.

For more than 25 years, this Philadelphia store has been offering a wide selection of Victorian oddities and antiques.