The seamy, underground secrets of Portland's criminal past.

A museum dedicated to one of Portugal's most celebrated writers.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

Perhaps the most spectacular grotto along the Algarve coastline.

A garden in Lisbon filled with giant porcelain creatures.

A unique seaside cave where Aleister Crowley faked his own death.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

Experience what life was like in Ireland during the Viking and medieval ages.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

A centuries-old forgotten underworld lies beneath Malta.

The ruins of a thousand-year-old hermitage are tucked away deep in the sloping forests of Albano Lake.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

This historic recreationist school churns out warriors that may very well have had a fighting chance in Rome's pits of the day.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

A 15th-century monumental Latin inscription on this house celebrates Lorenzo Manilio's love for Rome.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

Harlequin costumes, signed scripts, and armor-wearing puppets.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.