The site of many tense prisoner exchanges across the Military Demarcation Line between North and South Korea.

Ancient temple is home to centuries of art and spiritual artifacts.

A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Commemorating the spot where the famous scientist fed his pigeons.

World's largest cave was only discovered in 1991, and now offers tours to the public.

The king of U.S. high points towers over every other peak on the continent.

This whimsical stacked cabin looks like something out of a children's book.

On the outskirts of San Antonio, a small bridge is said to be the home of a mysterious local legend known as the "Donkey Lady."

Once damaged by Hurricane Agnes, this bridge is now on the National Register of Historic Places.

Fast food feels like fine dining at this award-winning modern Georgian building.

When ecosystems collide in the arid Southwest.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

The largest drain hole in the world.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

The oldest private residence in New York City.

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

This lone survivor of a regional franchise still slings delicious burgers and colossal servings of fries.

This giant rock arrived at this quiet park thousands of years ago on the back of a massive glacier.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

The world's largest fire hydrant is supposedly tornado-proof.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

An old train trestle re-imagined as an Egyptian obelisk.