The oldest covered railroad bridge still standing in the United States.

It's safe—and permitted—to walk across these twin natural sandstone arches.

Across the islands, baked goods, sauces, and much more are for sale 24/7.

The easternmost town in Alaska can only be accessed from Canada.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

The longest enclosed pedestrian bridge in the world spans 14 lanes of traffic and six rail tracks, all while lighting up the night sky.

This legendary dessert was served to Nobel laureates for decades.

In the mountains of West Virginia is this perfectly preserved Art Deco train station.

This twisty section of highway in the Himalayan foothills is lined with thousands of small mirrors.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This overlooked street light once served as a KGB dead letter box.

This house certainly has a unique decor.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The dishes at this restaurant by The Sioux Chef celebrate indigenous heritage.

Air-raid tunnels hidden beneath this opulent hotel provided shelter and an escape route—and one of the world's longest slides.

Taiwan's last Chinese character letterpress preserves the dying art of Chinese character mold making.