Shop of curiosities with a dinosaur museum tucked in its basement.

A sprawling outdoor museum filled with larger-than-life works of art.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

Naturally formed rock city in Poland.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

The site of the first battle of World War II.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

An underground city of salt.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

A curious collection dedicated to human and animal anatomy and pathology.

Cat art as far as the eye can see.

Museum preserving torture methods from the past.

The world's only museum devoted to the wonders of fluorescence.

A bizarre house filled with an astounding array of collections.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A beloved Chicago music venue offering cold beer and lots of “Friendly."

Cemetery featuring rare glass-fronted columbarium.

All of Chicago's wood-paved streets are long gone but two alleys remain.