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

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

This grubby wall is said to be one of the Earth's esoteric energy centers.

Inside this Krakow church, an explosion of psychedelic color.

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

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

The majority of the highest mountain in Poland is actually located in a different country.

San Francisco Bay's ghost town.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

Overflowing with shipping containers, this location has been transformed into a massive workspace for artists.

These markers are used to determine the ground stability of the Strip.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

This arid landscape was once a lush wetland. Today, it's a paleontological site filled with fossilized mammoths, sabertooth cats, and more.

Improbably, the largest wildlife refuge in the conterminous 48 states sits just northwest of Las Vegas, Nevada.

Journey through this open museum where even employees remain true to period.

Huge winged monument in the United Kingdom.

A famous pilgrimage site that remains hidden in the midst of a city.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.