An abandoned NSA listening post on Berlin's "Devil's Mountain."

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

An oddities shop that dabbles in the deathly and beautiful.

Hamburgers are intensely proud of their tunnel beneath the river.

Why walk on this historical site when you can zoom down instead?

At a rest stop north of Seattle, you can drive through the trunk of an ancient tree.

This mysterious anthropomorphic statuette is on display at the National Museum of Oman.

A menagerie of concrete animals brought together from across New York City's parks.

This 19th-century house museum features a horse-drawn hearse and other antique oddities.

What began as a prominent Burning Man art piece is now an iconic symbol of downtown Reno.

This statue honors Marvin Klegman, a heroic child who died while saving another boy's life in a 1949 earthquake, and shares his long untold story.

This municipal sundial has been keeping time along Tacoma's Commencement Bay since 1978.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

This art gallery and oddities boutique bewitches visitors with a trove of occult trinkets and eccentric antiques, work by an ever-changing roster of underground artists, and classes in tarot and other mystic arts.

An impressive Sasquatch statue marks the spot of a fated Bigfoot encounter that changed a community.

Large rocks have been painted to whimsically resemble wild and farm animals.

A dinosaur-laden walking trail outside Singapore's Changi Airport.

A carnivorous plant paradise in a serpentine bog.

The granite head appears to be deep in thought and half buried in the ground.

A mysterious taxidermy man-beast of the seven seas.

Try the alligator at this fondue spot, which has been catering to "lovers and hedonists" since 1967.

The natural hot spring that was integral to the creation of Canada's first national park.

Take a hike to this remote, scenic tea stop in the Canadian Rockies.

Canada’s surprisingly controversial monument to Dwight Eisenhower.