The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

This park contains a number of standing stones meant to heal and inspire.

In which a local geological marvel becomes a quaint roadside attraction.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

One of New Jersey's oldest surviving buildings still bears the mark of our former British overlords.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

The first American department store, and home to the largest operating musical instrument in the world.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This beloved marketplace mascot poops money and grants good luck.

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

A daily replay of the experiment that proved the rotation of the Earth.

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

Yo, Adrian!

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

World's first "penitentiary," meant to be humane, drove men insane.

A legendary boxing venue and ring featured in Rocky V.