A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The world's second-largest sundial, made entirely out of stone.

Started as a kitchen garden, now the second largest botanical garden in the world.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

Ozymandias’ time-keeping temple.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

An unsettling painting of three faceless sisters that is surrounded by history and legend.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

A church of bones, decorated with 40,000 human skeletons.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

A hacienda that features all things uniquely Yucatán.