A peculiar family mausoleum built by a German nobleman captivated by the occult.

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Remains of an abandoned coral city.

An exotic jungle hideaway run entirely by indigenous Kichwa women.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

Inside the columbarium, thousands of colorful, high-tech Buddhas guard the ashes of the dead.

The small sanctuaries lie just off the beaten path near one of Bhutan's most famous attractions.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

This historic Art Nouveau townhouse was the former home of the son of a famous chemical inventor and industrialist.

Puzzles within puzzles hide a golden treasure in this hedge maze.

The world's largest bamboo labyrinth is a living demonstration of the plant’s immense potential.

A lavender labyrinth so large it’s visible on Google Earth.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

This Vietnamese bar doubles as a multistory labyrinth.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

A huge maze complex and whimsical miniature village in Tasmania.

Learn about the sweet, storied legacy of beekeeping in ancient Greece.

A dark, narrow tunnel that leads to a charming lake and waterfall.