The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

This Welsh dockyard was the site of the not-so-secret construction of the Millennium Falcon for the original Star Wars trilogy.

Ruins of a German castle on top of a towering stone pillar.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

The narrowest house in the U.K.

A bizarre stone beast lurks on the beach of a popular tourist island.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

400 million years of erosion shaped these fascinating seaside caves, which made an appearance on 'Game of Thrones.'

Europe's largest community of crocodiles and alligators.

A contemporary art installation housed within a Gothic cathedral.

A historic structure inspired by Roman, Muslim, and Jewish bath houses.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

This rusted shipwreck directly in front of a century-old abandoned lighthouse looks almost surreal.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

In paradise, feral pigs have claimed an island all to themselves.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

The ancient latrines of the Greeks, in all their public glory.

Roman ruins top white travertine terraces formed by ancient hot springs.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.