This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Vibrant street art created with mixed media.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

This house's itty bitty size means no humans allowed.

A medieval wash house where people washed clothes in a river allegedly formed by the tears of a mourning nymph.

Thousands of well-dressed mummies below a monastery.

Italian cave with exceptional acoustics and an unsavory history.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This one-time health resort was used by aristocrats around the world.

Macabre astrological automaton clock dating to the late 1400s.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

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

Iceland's tribute to its thankless civil servants.

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

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

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.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

Hundreds of Buddhas in a re-discovered Indonesian temple.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.