An unusual waterfall in the Santa Rosa Range, within the Great Basin of Nevada.

An attractive alpine lake at 8,400 feet that is accessible via a paved road.

This geothermal hot spring hides beneath a slowly growing mineral dome.

This sandstone building is a relic of the Overland Trail.

Underneath downtown Lincoln resides a network of caves that was also the city's first brewery.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

The only Florida state park with publicly accessible caves.

A 1950s eccentric's vision of Eden preserved as a hiking trail.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

This is the last hand-cranked chain ferry of its kind in operation in the United States.

In this quiet park a rendition of a classic painting graces the outside of a charming restroom.

The park is home to the United States's only still-operating Dutch windmill.

An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

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

The skeletal white beams stand as a monument to religious dissent.

A sprawling maze of used books piled from floor to ceiling.

An eerie and beautiful group of columns mark the site of a grand mansion lost to time and fire.

This is one really big nut.

Home of the International Space Hall of Fame.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

Apparently, the whole cosmos emanates from this plain concrete tower.

Outside this souvenir shop is a statue of Bigfoot composed of volcanic ash, and plenty more to see inside.