A mile-long navigable cave adorned with stalactites and stalagmites reaching up to 65 feet tall.

This small cafe aims to empower acid attack victims and stop violence against women in India.

This glacier interpretation center houses the world’s only bar made completely from glacial ice.

A series of playful yellow penguins share a serious message about the environment.

Over a decade ago, painted penguins mysteriously appeared around Berwick-upon-Tweed for no apparent reason.

A surprisingly beautiful abandoned World War II military base in East Greenland.

A sapling of the legendary tree where conquistador Hernán Cortés sat and wept after an Aztec uprising.

The beloved war-time celebrity spent time in the area before retiring to the Edinburgh Zoo.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

Where else would you expect to find the gravesite of European royalty than the windswept dunes of rural Northern Michigan?

This iconic pavilion in Barquisimeto has a roof made from 16 “petals” that open and close depending on the weather.

A unique zoological park home to over 30 species of wild cats, both big and small.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

The fifth-longest natural arch in the world, and the longest outside China.

An enormous Buddha peers through a gap in its ruined chamber.

Amazingly, this centuries-old wooden monastery is still standing today.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

A short volcanic hill in Quito doubles as a stellar observation point of an iconic statue.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

The statues honor the state transportation employees who've died while performing their work-related duties.

Incredible rock formations jut from the southern end of this spectacular stingray-viewing spot.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

A rare cluster of alien-like plants grows along a dusty highway.