During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

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.”

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Breathtaking and huge 430 year old maps of Italy.

This medieval church is not only notable for its architecture, but also its connection with LGBTQ+ history.

The celebrated eyesore created by starry-eyed sweethearts.

The video game-themed street art first popped up in the French city.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

Paris' linguistic guide to the international language of, yes, love.

The oldest stone house in Paris was built by its most famous alchemist.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

The phone booths in this English town have distinctly milky hues.

The fake World Cup prize was secretly created after the first one was stolen in 1966.