These markers are used to document elevation changes around the famed dam.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

One of the last remaining covered bridges in the region.

This library and museum is dedicated to the life and literature of the Indianapolis native author.

The land is home to swimming ponies and a legendary 18th-century treasure.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

Come for the springs; stay for the mud bath.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

An island graveyard with spectacular views of the Caribbean.

Beach instrument turned bed and breakfast.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

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

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

One of the largest underground systems runs under Canada's largest urban center.