A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.

A pair of gigantic baby heads greet passengers at Atocha Station.

A place to eat for on-the-run agents and espionage enthusiasts.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

A hidden gem that highlights the life and innovations of Les Paul, the "Wizard of Waukesha."

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

One of the first intercontinental ballistic missile sites in the United States.

Once used as a deterrent to drinking alcohol.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

There aren't too many operational funiculars around, but Pittsburgh has two!

This whimsical sculpture garden is a local treasure.

This cave holds a surprisingly colorful variety of geological oddities.

This former studio belonging to a pioneer in photography stands in a picturesque landscape with unique rock formations.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

When an ancient supervolcano erupted, some of Nebraska's prehistoric animals were forever preserved in ash.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

This amazingly preserved Gold Rush town is a historian's dream.

A classic carnival ride that was carved to be untouchable.

Robots, lasers, and whoopee cushions, oh my!