Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

This ancient rock painting is the oldest evidence of humans’ love affair with honey.

This amended headstone marks the grave of a participant in one of the most successful military deceptions of all time.

An eerie collection of the surviving structures from a past celebration of the future.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

This chimerical bridge/tunnel appears to dead end right into the sea.

A floating underwater hotel, created by a Swedish artist.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Museum dedicated to the terror regimes of Hungary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A small granite monument marks where the borders of three countries meet.

This open-air museum was originally a World War II testing ground for German missiles and rockets.

A striking public sculpture representing the period of martial law in Communist Poland.

Boats must transform into railroad cars to navigate this Polish canal.

Warsaw's fantastically preserved gasworks...almost.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

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

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

An underground city of salt.

The last fully functional fortress of Germany's World War II Atlantikwall.

A naturally occurring tunnel in this Nordic mountain makes it look like it's been shot.

A Viking-style brewpub named for a Norse sea giant, in the heart of fjord country.