There's something big lurking beneath the surface of this tiny Oregon park.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

A volcanic landmark located on an Ice age lake bed.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

Entering this curiosity shop is like stepping into a mad scientist's lab.

These machines have been collecting dust for decades.

This abandoned boat sits on a nude beach, is shaped like a UFO, and is covered in graffiti.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

An emporium for the weird, creepy, rare, and just plain gross.

Only known mainland rookery of the threatened Stellar sea lion.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

These massive mitts are made of 30 tons of devotional bronze.

Nature's biggest mammal swims in landlocked Oklahoma.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

A large stone map of Arkansas awaits visitors to its highest point.