A pre-Columbian ceremonial and astronomical site built by the Taino Indians.

The first official clock in North America, it kept time for the Spanish government of Santo Domingo.

The final resting place of Christopher Columbus - or possibly someone else.

Kissing the ass of this stone lioness has become a rite of passage in the city of Girona.

This centuries-old tower hosts endangered bald ibis mating pairs and looms over a pristine beach.

Touching the iron railings of Tarragona's balcony to the Mediterranean is said to bring good luck.

A statue commemorating a beloved stray dog who was adopted by the entire neighborhood where he lived.

The longest eruption in the history of La Palma originated with this volcano in September 2021.

The world's largest sundial can cast a shadow more than 1,600 feet long.

A tiny church remembers the Polish cavalrymen who charged their way into a Napoleonic victory.

The oldest operating roller coaster of its kind, the Montaña Suiza has been thrilling riders since 1928.

The largest cave on the island of Menorca was likely the site of Iron Age rites and rituals.

The cave where Saint Genadio meditated and played chess.

Nature puts on a spectacular show at this blowhole on the eastern side of Gran Canaria.

An untouched lava tube accessible to the adventurers.

A mountain path passes by several sprawling enclosures home to a pair of rescued brown bears.

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

A long strip of fossil-filled limestone makes up this natural bridge above a rushing stream.

A road that winds through this natural cave is the only way to access the small, appropriately-named village of Cuevas.

These old towers extract salt from the sea.

These ungulates have quite literally bounced back from the brink of extinction.

The largest salt farm in the Canary Islands is located at the foot of an active volcano.

Possibly the oldest masonry dam in all of Europe.

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