The second-largest giant sequoia in the world.

This rock formation named for its unique shape is one of many that call the Alabama Hills home.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

Go deep on these fascinating fish, and get a bonus lesson on the importance of marine conservation.

Enjoy dishes that founding fathers once ate at this Colonial Williamsburg pub.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Cemetery honors Americans who died during WWII and is the resting place of Gen. George S. Patton.

During World War II, Austria's oldest salt mine was used to store thousands of pieces of stolen artwork.

An Austrian house of bones filled with hundreds of intricately painted skulls.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Maine’s only official memorial to the Underground Railroad.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Paris' linguistic guide to the international language of, yes, love.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Visit the remains of a notorious Victorian-era correctional facility.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.