The castle used by the Danish Royal Family as a hunting retreat.

While it would not look out of place among Serbian spomeniks, this massive Bulgarian monument commemorates one of their defeats.

Also known as the Great Mosque of Damascus, this is one of the world's largest and oldest mosques.

This place is the subject of local legends about a good witch and a Celtic God.

The 18th-century temple was once the tallest structure in Pune, and surrounded by a garden of tulsi.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

One of the few surviving gates into Old Goa, the former capital of Portuguese India.

A charming Amazigh village carved into a mountaintop.

Overshadowed by the theme park opposite it, this small museum explores a major moment in American history.

This small museum inside a larger sports complex honors the first Native American to win an Olympic gold medal for the U.S., and his life of achievement and struggle.

Home to 800-year-old zen basin, a 400-year-old pilgrim’s path, and a century-old industrial grotto.

A museum capturing one of the world's most famous classical composer's battle with hearing loss.

This small canyon park was once the main street of Silver City—until a flood washed it away.

The remains of a 70-year-old military aircraft crash landing still sit on this Scottish hillside.

These 7,000-year-old cave paintings depict life in Neolithic Spain.

A helicopter memorial commemorating what was once the only way to access this West Berlin exclave.

An eerie fountain commemorating the death of a boy that sparked a small war in the 19th century.

The Inuit kayak from Robert Peary's 1896 expedition to Greenland is now on display at a local library.

This 86,000-square-foot artwork is the largest mural in the world to cover a dam.

New Hampshire's first neighborhood is now preserved as a historic village with live action role players.

This Welsh dockyard was the site of the not-so-secret construction of the Millennium Falcon for the original Star Wars trilogy.

You'll need a microscope to see some of the minuscule masterpieces in this modest museum.

The longest timber-piled jetty in the world has an underwater observatory.

Dedicated to the neverending mathematical constant, this plaque next to a park bench was sponsored by an anonymous benefactor.