University of New Hampshire holds the documentation and artifacts of local alien abductees.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This small stone chapel is a hidden gem just outside the University of New Hampshire campus.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A gorgeous medieval library where the books are kept in chains.

A domed disco abandoned since the '70s now attracts artists and explorers under its unique roof.

A line of abandoned, alien-like fortresses dot the mountains of North Italy.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

An impressive collection is dedicated to the legendary beast.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

A bike train runs along a disused railway line through the tranquil French countryside.