A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

A grove of colossal man-made flowers built to collect the sun's rays.

Turning night into day in Victorian-era Austin to thwart a serial killer.

This metro station doubles as an unintentional paleontology museum.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

One of the most photographed locations in the entire city.

This memorial to a murdered empress took 20 years to design, then spent 30 years hidden away in storage.

A carnivorous plant paradise in a serpentine bog.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This snug medieval lane is one of the narrowest streets in the world.

Romania's triumphal arch looks out over Bucharest.

In the summer of 1957, a massive architectural exhibition showed off the future of urban living in this German neighborhood.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.

Something's watching you.

This ancient Corinthian helmet is South Korea’s only national treasure of Western origin.

Down this Cracovian street resides a plaque with a stark message about the city's air pollution.

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

A collection of old neon signs from all over Poland line a secluded courtyard.