The ancient tomb acts as a calendar that keeps perfect time.

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

This boat represents the promise of undiscovered territory, a dream of hope, and progress and freedom for Iceland.

These unique and ever-changing caves are a wonder of Iceland.

A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

This stunning concert hall has become a symbol of Iceland's national recovery.

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

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

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

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

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

The metal leaves on this tree are engraved with the names of Holocaust victims.

This Greek Orthodox church houses the mummified body of St. Spyridon.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This legendary city has been a tourist attraction for centuries.

An abstract monument to a symphonic composer.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

This Danish park has celebrated the American independence day since 1912.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Before serving as James Bond's Casino Royale, this Victorian-era spa catered to the world's elite.

A colossal statue of a woman hugging a modern building.