A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

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

An underground city of salt.

A collection of modern and vintage pinball machines housed in the cellar of a 15th-century building.

Learn the fine art of making a centuries-old treat at this hands-on food museum.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

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.

Real bones which are said to have belonged to a Polish dragon.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

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

This Vietnamese hell cave lets visitors take a walk through a devilish underworld full of demons.

This antique shop offers affordable 15th-century Vietnamese ceramics salvaged from a local shipwreck.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

A small museum dedicated to Vietnam’s lesser-known Iron Age culture.

Located off a bustling strip, a silent teahouse employs workers with hearing- or speech-related disabilities.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

A floating cat sanctuary on an Amsterdam canal.

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

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

A strange rock formation with numerous legends trying to explain it.