The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The narrowest street in Paris.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

How did a French journalist’s grave become the sexiest statue in the cemetery?

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Indents in the pavement are all that remain from a grisly death machine in Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

The history of this Moorish castle includes royals, a Mexican-Spanish association, and several attempts at lodging.

The first mechanized factory in Spain is also one of the most significant mints in the history of money.

The facade of this 16th-century building is decorated with carvings of 300 seashells.

This historic electric train has operated with regularity since the early 1900s.

The world's first electric battery-powered submarine.

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

These "mermaids" that surround a plaza in Segovia are rather sphinx-like.

This 17th-century manor house provides a fascinating glimpse into old-world Mallorcan life.

This historical manor is complete with a magnificent garden.

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

These ancient artifacts are a testament to the enduring significance of the bull in Spanish culture.

A solitary lighthouse in Spain was an inspiration to the great Jules Verne.

This Gothic church houses ornate royal tombs and a magnificent gilded altarpiece.

This spectacular bridge is part of an abandoned train line that once connected Mallorcan capital to the southeastern coast.

A curious memento mori hangs in the magnificent Cathedral of Segovia.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.