Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

A son's promise to his dying father in the form of a covered bridge filled with thousands of seashells.

Five mythical trolls have taken up residence in woods and hidden on paths at the Coastal Maine Botanical Gardens.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

This bridge is haunted by the ghost of a distraught mother.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

Series of storm drains connected to a dark urban legend.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

Within this lovely Richmond cemetery lie the remains of famous Virginians and some of Edgar Allan Poe's most beloved family and friends.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

From pink dolphins to underwater cities, this museum explores the unseen, mythical world of the Amazon river.

A 1960s damming project turned one family’s hilltop cemetery into an island.

This historic castle is one of the oldest and most impressive in all of Japan.

For this chef, an active volcano is his oven.

In Hong Kong, a fairytale flower tunnel is hidden within the gardens of a public housing complex.

The romantic botanic tunnel feels like a well-kept secret.

An abandoned railroad tunnel transformed into a creepy path for hikers and cyclists.

An open-air, roadside eatery celebrating a historic indigenous cuisine of complicated significance.

Birthplace of America's first documented serial killer.

This location of a Mexican chain restaurant has a unique location: an old jail.

Nature and religion are reunited at this unconventional church in the forest.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.