Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

Look closely and you’ll notice that the color changes a third of the way up the tower.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

A tall karst islet popularized by 007.

Op-art architecture designed for happiness.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This network of tunnels housed an entire village for years, and even had a hall for screening movies.

Time has stopped at the house where Gandhi died.

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

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A shining, cold, black organ lies in San Francisco's financial district.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.