A little-known, yet charming glacial lagoon.

Meet Rita the Rock Planter, one of Danish sculptor Thomas Dambo's enormous wooden trolls.

A rare venue to buy specialty maps.

Experience the magic (and science) of a camera with this giant structure that allows you to enter inside the camera.

A limestone grotto where daylight filters in from below and turns the water a beautiful turquoise. Also home to a small underwater nativity scene.

This cryptic monument honors a mysterious dead woman, despite her identity being lost centuries ago.

The second-largest giant sequoia in the world.

Made of granite, this is a symbol of the Inuit peoples near water that expresses abundance.

This Masonic lodge was the first major private building to be constructed in Washington, D.C. after the Civil War.

This exaggerated sculpture resembles a well known feature of Vancouver:

All that remains of this once-booming mining town are the ruins of a saloon.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

The National Park Service’s best-kept secret with views that rival any in D.C.

Explore an enormous collection of original Americana tucked away in a small hamlet.

A 100-foot metal tower and swinging bridge that provides stunning views of mountains in five states.

This unassuming building houses one of the world's most extensive collections of cars created by automotive legend Carroll Shelby.

Check out a hidden collection of vintage neon signs.

This functioning mill was built in the 1970s using parts from several other West Virginia mills.

The location where the American Revolution ended.

This fallen red oak tree has been transformed into a piece of trailside art.

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

This Rocky Mountain mansion was the luxurious home of the authoritarian leader of a company town.

An unusual slot canyon in the Aztec/Navajo Sandstone has a cross-section like an inverted old-fashioned keyhole.

A miner's handmade folk art fountains are tucked in the woods off a multilane highway.