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

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

Krakow's own version of the Hollywood Walk of Fame.

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

Legend holds that this knife serves as a chilling reminder of the deadly rivalry between two local builder brothers.

Inside this Krakow church, an explosion of psychedelic color.

Seven dragon statues—including one that breathes real fire—are scattered throughout the streets of Krakow.

A statue commemorating a Polish dog who took his role as man's best friend very seriously.

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

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

A relic of Poland's shipbuilding past, reborn as a sky-high lookout.

Modern art commemorates one of the first military actions of World War II.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

This antique thermometer honors the creator of the first universal temperature scale.

During the renovation of this bas-relief, the constructors added one unusual element.

This charmingly homemade amusement park has been growing for 40 years.

An institution that preserves the history of institutionalization.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

Inside a humble hangar is some of the best roller derby the world has to offer.

Their motto is, "We've been bonkers for hats even longer than you have!"

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

A sculpture of a salmon swimming through a brick building.

The oldest restaurant in Portland serves fiery coffee cocktails and an astounding amount of turkey.