100-year-old shipwreck you can walk up to at low tide.

This 19th-century museum inside of a lighthouse is only accessible during low tide.

This natural marble cave is one of only five national monuments in Oregon.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

This large maar crater in Oregon is the bigger brother to Hole in the Ground.

One of two trees tied for the distinction of the largest western juniper in Oregon.

A comedy troupe's collection of bizarre humor.

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

"The Most Boring Road in the State."

The king of U.S. high points towers over every other peak on the continent.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Eat like a "buckaroo" at this remote restaurant.

The first declared National Monument in the United States.

West Virginia’s first state park commemorates one of the state’s last significant Civil War battles.

West Virginia’s largest bog is home to rare carnivorous plants.

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.

These dramatic cola-colored falls have appeared in a poem by Henry Wadsworth Longfellow and a song by Sufjan Stevens.

All aboard the world's longest miniature railway.

The third tallest plunge fall in Oregon, worth visiting year-round.

The original span of a high bridge across the deep Crooked River Gorge has been preserved for pedestrian use.

Spectacular volcanic cliffs along the Crooked River invite hiking, rock climbing, and photography.