Half of a waterfall goes into the river while the other half seems to disappear.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

The headquarters in Salem doubles as an occult art gallery.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

This abandoned prison castle has become an imposing gallery of graffiti art.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

During the holidays, a vintage subway train whisks New Yorkers back in time.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

Ruins of a Carnegie family mansion on Cumberland Island.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

A tribute to Ponce de Leon's supposed quest for eternal youth.

The remains of a ruined mansion memorialize the 1906 earthquake.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.