Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Ruins of a German Castle on top of a towering stone pillar.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

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

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

The highest point in Montana is as rugged and singular as the state itself.

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

Every president in history is immortalized in bronze in downtown Rapid City.

Follow the path behind this treat-slinging camper van to a sculpture garden in the forest.

The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.