Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

The only working large-scale tea plantation in the United States.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

A forest wonderland caused by Burlington, Vermont's aggressive southwestern winds.

One car at a time please.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

These 13th century documents come housed in 18th century shelves organized by a 19th century historian.

This region of Slovakia boasts some of the most plentiful opal mines in the world.

An extraordinary museum devoted to the pop art legend created by Slovak artists.

An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.

On this Polish road, an optical illusion makes cars seem to roll uphill.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.

A tree planted by Marie Curie is treasured by the Radium institute that she set up.

This fairytale medieval church in Poland originally spent centuries in Norway.

The ruins of a 13th-century monastery that long served as a place of refuge from wars and raids.

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

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

These massive moving sand dunes have swallowed an entire village and are still on the run.

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

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

Museum dedicated to "the man who moved the Earth."

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

Warsaw's fantastically preserved gasworks...almost.