This Italianate Villa-style castle is pretty to look at, just keep off the private property.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

A serene plaza that commemorates one of the Granite State's most iconic figures.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

These boots are made for selfies.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

These eerie outliers of the lightning bug family glow a mysterious blue color.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

This was the first ever National Lakeshore, established in 1966.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

On the Hudson resides one of the largest clocks in the world.

Step inside Lucy, the world's largest "elephant."

A unique sculpture park that specializes in the huge and bizarre.

The highest bridge in America was built for an almost unnervingly small amount of money.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A flat-topped butte that makes a constant backdrop for Western art.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A historic coal mine that doubles as a museum and tourist attraction.

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

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A treasure trove of rare and exquisitely detailed antiques

This humble hole-in-the-wall is home to an incredible pig ear sandwich and serious civil rights history.