A hand-built folk art installation covered with messages of God's love.

A layered tribute to the work of mosaicist Isaiah Zagar.

America's most famous piece of self-built architecture.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Abandoned railway line circling the city of Paris.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A fiery crater has been burning in the Karakum Desert since 1971.

A walk through the historic city center, under the streets of Seattle.

Elevated freight railway turned wildly successful urban park.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

The ghostly remains of an accidental sea.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Notorious artist squat renovated into legal studios.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A trash dump made beautiful by nature's power.

A toxic ghost town sitting atop a massive coal fire.

An enormous, inside-out glass globe built in 1935.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.