This black church sits alone among a field of lava rock.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

Staves, storm-calling, and of course, necropants.

The only recreation of William Shakespeare's indoor playhouse.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

Walk through the history of American pop culture.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

A Civil War Museum with some notable medical antiques.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

At 207 feet, one of the world's longest continuous escalators.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

A museum dedicated to exhibiting remarkable outsider art.

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

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Home to items never before seen by the public.

Parking garage where Bob Woodward met Watergate source "Deep Throat."