A monument marks the location of the first successful steamboat demonstration.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A table rock formation that has been intriguing West Virginians for years.

An abandoned asylum incorporated into a college campus.

Superfans of The Shawshank Redemption can take a driving tour of most of the films real locations.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

The crash of this great airship signaled the beginning of the end for dirigibles.

The highest point in Maryland is only accessible by hiking through another state.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

The souls of the dead have made these Ghanese crocodiles shockingly docile.

Fifteen Jodhpur queens left their handprints before going to their fiery death.

Once thought to be the Garden of Eden it holds a holy footprint claimed to belong to Adam, Buddha and Shiva.

On a wall in Cleveland, Ohio find the story of a highly connected fictional community of organisms that created remarkable, lasting structures.

The only presidential monument to display a late POTUS's actual casket.

The angel of death appears to weep black tears at this grave marker.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.