A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

Rainbow-hued in the summer and crystalline in the winter, this salty lake has inspired battles, temples, and plenty of awe.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

The Grand Canyon of Texas.

It's unclear what caused the fire that led to this opulent hotel's demise.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

This singular art museum in São Paulo is unique inside and out.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Artistic Oasis in Industrial Ballard.

Once the most densely populated place in the world, this island is now a ghost town.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

This refurbished gas station is one of the oldest in Texas, located on the original Route 66.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The crumbling remains of a once-grand building.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

These giant sculptures are supported by a bizarre menagerie of feet.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

The absurd creation is a compulsory destination for selfies in Buffalo.

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.

Public art now takes pride of place on the site of one of County Durham's last deep coal mines.

This exuberantly curated landscape is one of the largest sculpture gardens in Canada.

A nature and outdoor art preserve features the large-scale, abstract works of a renowned Maine folk artist.