An out-of-place grove of sequoias thrives in northern Spain.

Stormy conditions send jets of seawater bursting through holes in the cliffs.

Venice's "Island of the Mad."

Armenian monks at an island monastery in the Venetian Lagoon make a rare rose petal jam.

This Tuscan church contains a gallery of over 700 ex-votos depicting near-death experiences.

A strange-looking 18th-century tower sits on a tiny islet just off Livorno.

A medieval weapon rumored to have been used by the brilliant poet himself.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

An uninhabited village that preserves and documents rural architecture and an endangered way of life.

See replicas of Europe's most famous cave paintings and even some of the animals that feature in the art.

An abandoned Indian-inspired mansion.

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

A magnificent place to see authentic paleolithic cave paintings that are an astounding 33,000 years old.

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

Made up of 3,200 recycled glass bottles, this tree pays homage to Asturia's love of cider.

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

Dr. Fleming's work saved the lives of many bullfighters thanks to his discovery of penicillin.