Nature's slip and slide.

This "Little Finland" started as a Finnish utopian society in Eastern Brazil.

A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

An abandoned Soviet-era mining town in the mountains of South Kazakhstan.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

The ruins of this prominent glass factory yield hidden treasures buried among the jungle floor.

A remote island holds what claims to be Scotland's smallest cinema.

This antique farmhouse is one of Læsø's rare seaweed houses.

Some 20,000 dust-covered unwanted vehicles languish in the desert.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

The clothes-washing king doubles as a community center with some unusual features, including an aviary filled with finches.

This secret garden has bloomed into London's most unique hub of urban creativity.

This sacred, circular cave is lined with pools so clear and still that it's hard to tell where the water begins.

A network of hundreds of interconnected wineries in caves hides under the town center.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

An abandoned fishing village in pre-oil Qatar.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

This underwater cave in Madagascar is home to what is thought to be the country's largest fossil graveyard.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Things aren't quite what they seem at this mind-bending museum.

This abandoned stepwell is one of the largest, deepest, and certainly one of the creepiest in India.