Order “Proletariat’s Cutlet” at this communist-themed restaurant allegedly once visited by Lenin.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

Special benches that play Chopin's music are scattered throughout his native city.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

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

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

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

An underground city of salt.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

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.

Every four years, millions of salmon fill a river so densely that its waters appear deep crimson.

The morning of January 9, 1965, over 46 million cubic meters of earth, rock, and snow broke free, obliterating a section of the highway below.

As you overlook the Howe Sound and the town of Squamish, your breath will be taken away by its beauty or the stairs... probably all the stairs.

The ruins of Vancouver's abandoned heritage railway.

An effigy of Vancouver's Gastown neighorhood's namesake.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

A hands-off space for graffiti artists to hone and display their skills.

A brother statue swap has adorned this building's facade for centuries.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A scattered trail of street art adds a pop of color to the city's stark structures.