Rare recess caves fill this unbelievably beautiful Ohio park.

Ancient pueblos built into the base of a natural canyon wall.

This historic national park is covered in the stunning ruins of red rock pueblos.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

This church on a Tohono O'Odham reservation has stood since 1797.

Visitors to this public park will also find the ruins of an old western fort.

This quiet chapel was central to a community of settlers who reclaimed an abandoned fort.

With more than 2,000 pieces, this is world's largest collection of artwork inspired by Leonardo da Vinci's 'The Last Supper.'

Stairs often replace streets on the steep slopes of this old mining town.

What is the Thing?

The writing studio of an American adventure author, built in the style of a medieval castle.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

Week-long festival in the baby food capital of the world.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

These sprawling mines once served as a source of plaster and today serve as a storage facility.