The most confusing clock in New York.

Red frames showcase remnants of one of New York's original subway stations.

The oldest living tree in Manhattan comes shrouded in sinister legend.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

A once-booming railroad left abandoned next to the Quinnipiac River marshes now intersects with a hiking trail.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

One of the world's first dedicated bank buildings in the world is now the oldest one.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This German museum is devoted to all aspects of grave culture from headstones to coffins.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

This roadside wonder is as mysterious as it is beloved.

A Yale University president wears full samurai garb in one of America’s oldest cemeteries.

British troops and Prohibition couldn’t stop this spot from becoming one of the United States' oldest continuously-run taverns.

An overgrown and abandoned tuberculosis ward resides in the midst of a quaint modern neighborhood.

Inside a state forest, the forgotten remains of a Cold War defensive installation.

Mysterious stone tower featured in many alternative histories of the New World.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

An unexpected Easter egg lurks in the background of a cherub wall relief at the Breakers mansion.