Saintly bones pressed into a wax effigy of a Catholic superstar.

The history of radiation is on safe display at the foot of a radiation science laboratory.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

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

The magnificent sanctuary is Spain's first purpose-built structure of its kind.

This air raid shelter from the Spanish Civil War is now a museum dedicated to the history of the city's bombardment.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

The eclectic observatory castle of a 19th-century astronomer and explorer.

This medieval chapel is now a shrine to the region's favorite sport.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

Ride the rails on a train harkening back to a 19th-century marvel.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.