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

At 16,627 feet above sea level, this unstaffed station is the highest in the world.

These planks were originally installed to hold the dead.

A little-known ruin with a convoluted history and a fascinating latrine drainage system.

The highest bridge in the world rises a dizzying 1,854 feet above the river.

Obscured within a ring of trees, this abandoned World War II relic hides on a German hillside.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

One of only two commuter aerial tramways in the United States.

A quick and simple solution to Cambodia's train woes.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

An oasis of shade and color amidst the bustle of the old city.

Europe's highest peak is a key pillar of the Seven Summits mountaineering challenge.

Tens of thousands of ancient rock carvings hidden in the heart of a French national park.

In Phetchaburi, Thailand, a roadside vendor cooks his fare with 1,000 mirrors and the power of the sun.

The ruins of an ancient pyramid built by the mysterious Chupícuaro civilization.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.

This colorful palace is an oasis of calm amid the hustle and bustle of the Buriganga riverfront.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

The fairy tale castle of the "fairy-tale king."

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

An old limestone mine transformed into a beautiful and unusual sculpture museum.