London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A kaleidoscopic warehouse-maze of handmade neon signs.

A complimentary beverage is offered to the bodega's resident rodents every day.

Several petroglyphs are all that remain of an ancient pyramid.

Spain's largest bullring offers a unique glimpse at architecture and history.

The oldest Marian image in the Canary Islands still impresses people nearly half a millennium later.

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.

An old, deep well, connected with a miraculous, divine rescue and the patron saint of Madrid.

A signal indicates the entrance to this alley, rumored to be a meeting place for witches.

One of the most important Celtic-Roman archaeological sites in Spain.

Peek into a cave of giant, glimmering crystals.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

An unexpected ghost village lurks on the southeast coast of Tenerife.

Possibly the oldest masonry dam in all of Europe.

The highest peak in mainland Spain is said to be the final resting place of a Muslim king.

The cathedral of a controversial, conservative, schismatic sect that declared the Catholic Church heretical and founded its own succession of popes.

The building hides in plain sight in Ribadavia's historic Jewish quarter.

A wonderful collection of fossilized dinosaurs and other creatures that roamed the landscape millions of years ago.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

These primitive rock paintings include a very beloved depiction of a woolly mammoth.

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.

This postmodern apartment block was designed to be a vertical neighborhood.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

Stunning Roman aqueduct used for 1900 years and still standing.