These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

A former smithy turned cultural hub with the capital's largest mural space.

Long before ultrasounds and modern testing, medical specimens like these conjoined twins helped physicians learn about congenital anomalies.

This plaque in one of London's oldest public hospitals commemorates the first meeting of two of Britain's most famous literary heroes: Sherlock Holmes and Dr. Watson.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

This London marker celebrates the spot where the world-famous English band was founded.

Ship-sized kinetic sculptural fantasy.

A domino effect created with Britain’s iconic telephone boxes.

A Roman spa buried deep beneath the City of London.

Collection dedicated to brands, packaging and advertising.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

The final resting place to 300 Victorian-era pets hides inside the city park.

This free museum is building a collection of books that are banned, censored or burnt around the world.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

"There's nothing there," and other lies the KGB told us.

This controversial monument was designed to lionize the Red Army, but also disheartened the Latvian people.

A map store filled with original Cold War era Russian maps of the world.

This statue is dedicated to the animal cosmonauts that perished during space flight experiments.

A black cat protests the City Guild in Riga's Old Town.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

This Parisian café sticks almost exclusively to an ethos of reuse.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.