This "floating railway" is one of the world's oldest monorail systems.

A striking 12th-century-style castle built on the edge of a cliff.

Ruins of a German Castle on top of a towering stone pillar.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Kawaii meets poisonous at this unique art gallery.

This cozy café is housed in a repurposed pharmacy originally built in 1927.

Only recently added to the shrine, this googly-eyed snail demon of unknown origin is said to have eye-healing powers.

Losing lottery tickets are deposited at this shrine in hopes of better luck.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Elevated freight railway turned wildly successful urban park.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

A touching tribute to a local hero who made sure his neighborhood stayed clean.

This abandoned sea fort has become an accidental bird sanctuary.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Ship skeletons haunt Baltimore's waterways.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

Hidden in Portland’s West Hills, a 170-year-old marker literally stakes out the Pacific Northwest.