Rome, Italy
The Mithraeum at Circus Maximus
The underground sanctuary of a mysterious ancient cult.
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Rome, Italy
The underground sanctuary of a mysterious ancient cult.
Rome, Italy
An alchemist's “magic door” stands in the middle of a Roman park.
Rome, Italy
The yawning maw of this pagan visage is said to bite off the hands of liars.
Vienna, Austria
Journey through a mesmerizing array of board games inside this museum.
Vienna, Austria
A glimpse into the festive and private lives of medieval Europe.
Vienna, Austria
Museum devoted to the artificial language of Esperanto.
Vienna, Austria
Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.
Vienna, Austria
Apartment complexes built into huge repurposed natural gas tanks.
Vienna, Austria
The resting place for anonymous victims of the Danube's dark waters.
Vienna, Austria
Baroque celebration of the end of the Great Plague of Vienna.
Vienna, Austria
Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.
Vienna, Austria
Macabre museum devoted to historical Viennese murders.
Vienna, Austria
The beautiful baroque library of the Hapsburg empire.
Warsaw, Poland
A massive mammoth bone has been on display inside this church since the 18th century.
Krakow, Poland
A collection of modern and vintage pinball machines housed in the cellar of a 15th-century building.
Sanok, Poland
An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.
Wierzbica, Poland
The giant metal fruit was once the symbol of a large farm.
Krakow, Poland
Learn the fine art of making a centuries-old treat at this hands-on food museum.
Warsaw, Poland
This bell stars in a tragic love tale and is said to make wishes come true.
Warsaw, Poland
Legend says this is actually a heartbroken prince waiting for his true love's kiss.
Warsaw, Poland
The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.
Gdańsk, Poland
A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.
Warsaw, Poland
A tree planted by Marie Curie is treasured by the Radium institute that she set up.
Malbork, Poland
This 13th century Gothic brick castle is the largest in the world by surface area.