Sweden's oldest animated sign is still lighting up the skyline today.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

A man has revenged his true love's betrayal through tears and stone genitalia.

One of the world's first dedicated bank buildings in the world is now the oldest one.

Stockholm's narrowest alley is barely over two feet wide.

A wooden street sign is the last remnant of this 400-year-old alleyway.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

An abstract representation of weather in Sweden.

Grand architectural relics gain a new life in this Pennsylvania warehouse.

The silly symbol for an underground protest group is now scattered around the city.

Microscopic scenes; some call it novelty, some call it art.

Two stunning 17th-century libraries and a cabinet of curiosities.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This moving sculpture depicts contortionist positions based on photographs of gymnast Věra Čáslavská, who protested the Soviet invasion of Czechoslovakia.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

The highest bridge in America was built for an almost unnervingly small amount of money.

A picturesque (all-natural!) beach in a landlocked state.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.