Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

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

One of the smallest bookstores on the planet.

After sitting unused for decades, this abandoned communist infrastructure became a wildlife utopia.

This museum offers a journey back to the Belle Epoque era of Romania.

17th century palace once a meeting place for politicians.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

Check out engineering marvels of the past at this unintentionally retrofuturist museum.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

This once-derelict building is now one of the most beautiful bookstores in the world.

Romania's triumphal arch looks out over Bucharest.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

This massive blockhead sculpture hides an entire library.

The construction of a tram line unveiled hidden remnants of the old medieval city.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

The world's first invisible city square is an homage to a man who pushed the boundaries of art.

Described as one of the Baltic region’s most daring and original construction projects.

Where a Japanese government official issued transit visas to Jews fleeing from Nazi-occupied Poland.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.