Rare recess caves fill this unbelievably beautiful Ohio park.

These little-known sands dunes are a geological anomaly in Saskatchewan's southern prairies.

Assemble a masterpiece at the first and only North American school exclusively dedicated to mosaic art.

A lavender labyrinth so large it’s visible on Google Earth.

The only surviving prototype of Buckminster Fuller's revolutionary car.

Natural rock water slides hidden in the remote forests of northern Idaho.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

A lush indoor jungle fills this bustling Madrid transportation hub.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

Eighteenth-century home, where Herschel discovered the planet Uranus.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Rainwater transformed this old quarry into a peaceful pond you won't find in most tourist books.

Race through the maze, get your name on the sign.

One of the largest cat sanctuaries in North America is considered a "Club Med" for felines.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

Certain traditions prevail on the least-visited island of the Aran Islands.

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Romans built the world's tallest artificial waterfall in 271 BC.

A brightly colored natural bridge formed by mineral-rich hot springs high up in the Andes.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

Huge spherical rocks in the middle of the prairie.

This is what trains will look like after the zombie apocalypse.