Cat art as far as the eye can see.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This plaque marks the former home of one of the first women physicians in the Netherlands.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

A Rocky Mountain city provides a happy ending for a pinto pony and his Brobdingnagian red chair.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.

One man's lifelong obsession with death.

The mysterious canine hides atop a drain pipe on the back of the building, some say as a sneaky shoutout to Yale.

Some of the saint's blood and bones are said to reside in Dublin.

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

An important landmark in the history of algebraic logic.

A tribute to the couples who brave long periods of separation during wartime.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A historic hotel library in Indiana hides more than a few secrets on its shelves.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

Sites connected to a woman born on a ship and spared by a pirate.

Sip mead from an East Nashville apiary while snacking on barbacoa tacos.

Feast on award-winning birria tacos from a food truck inside this neon robo-tiki bar.

East Nashville's oldest dive bar will bring you back to life with animal-style bar fare.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.