The eerie remnants of an ancient forest were hidden under the sand for centuries.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

This frequently-photographed waterfall takes only a short hike to visit.

A beautiful 62-acre Catholic shrine and botanical garden.

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

On the Oregon coast there is a natural hole that seems to be draining the sea.

A ceramic-tiled room at the Seelbach Hotel said to have secret tunnels used by Al Capone and a crowd that helped inspire F. Scott Fitzgerald's 'The Great Gatsby.'

This museum of miniature displays provides a journey through early American history.

This small museum is kept in a house that was integral to the genesis of Uncle Tom's Cabin.

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

An enormous natural sandstone bridge in Kentucky.

Moonbows over Kentucky.

You can dig up your own crystals in the quartz capital of the world.

Yup, that's where the name came from.

The highest waterfall between the Rockies and the Appalachian Mountains.

Two gushing waterfalls of hot spring water within a block of each other.

These waterfalls can be twins or triplets, depending on how much it's rained recently.

The seventh largest spring in the world.

Home to a seasonal waterfall and swimming hole in the Ouachita Mountains.