A crash site in the heart of polar bear territory has become a beloved local landmark.

In the palace with a thousand doors, not all of them are guaranteed to lead you somewhere new.

This former fire tower is now a rustic observatory that offers amazing views of eagles, hawks, and the Appalachian Mountains.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

This colorful overpass is one of Bhutan's longest suspension bridges.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

An ancient fortification lives on in this Chinese city.

An underwater statue of Christ blesses the coral reefs off Key Largo.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Τhis feline monument commemorates fallen soldiers on a field that saw many, many battles.

This 15th-century mosque is a beautiful blend of Hindu and Islamic architecture.

Many Hindus make the long pilgrimage to this holy city to have their remains burned on the banks of the Ganges River.

On the Pakistan-India border the militaries perform an elaborate theater of aggression each and every night.

This precariously balanced boulder is said to be a hunk of stolen butter dropped by the gods.

World's tallest monolithic statue has served as a pilgrimage site since its completion in 993 CE.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

This 16th-century mosque is the hallmark of the African architectural legacy in India.

Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.

A deeply beautiful 15th-century stepwell with a tragic story.

Half-size replica of the Taj Mahal.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

The world's largest secondhand book market is a haven for bibliophiles and bargain hunters.

An ancient iron pillar in Delhi that seems to be rustproof.