A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

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

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This black church sits alone among a field of lava rock.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

A hugely vast Irish landscape of barren rock that stretches for miles.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This medieval castle was reconstructed by Carlo Scarpa.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Two stone columns flank the grand Venice square, but there were supposed to be three.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

Southern Italy's spinning top village.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.