Hiroshima survivor on Riverside Drive.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

This giant boulder is sandwiched between apartment complexes in upper Manhattan.

A Gothic-style abode built to accommodate the church's three resident peacocks.

This pub can leave even the sober feeling slightly unsteady.

Built in the 1300s, this magnificent building that hosted England's kings and queens transports you to the Middle Ages.

This amazing 15th-century mural remained hidden in plain sight for centuries.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

Abandoned Nazi train station turned underground astroparticle laboratory.

32,000 tiny soldiers are posed in 23 historical settings.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

Sanctuary on a ridge near an ancient shrine to a "Black Madonna" built by the founder of Opus Dei.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.

This house's itty bitty size means no humans allowed.

This enchanting hamlet carved into the rock looks like something straight out of Tolkien's Rivendell.

A site outside Pedraza, Spain where a plaque tells a tale of seven-legged creatures that were said to have once lived in the area—in the fictional world of Kcymaerxthaere.

Whimsical sculptures and caves chiseled by nature over the millennia.

The ruins of an ancient Celtiberian town with incredible rock-cut buildings and a Roman aqueduct.

A mesmerizing reservoir nestled at the heart of a pre-Islamic Yemeni village.

Yemen's "Stone Palace" looks like it was carved right out of the tall stone column on which it is built.

Elaborate patterns adorn the city's disappearing traditional architecture.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

An ode to the classic piece of British street furniture.