This house was largely built out of hundreds of thousands of discarded glass embalming fluid bottles.

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

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

Three columns of volcanic rock shoot out of the ocean.

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

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

Northern Ireland's Brobdingnagian stepping stones.

Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

Italian cave with exceptional acoustics and an unsavory history.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

The facade of this 16th-century building is decorated with carvings of 300 seashells.

This remarkable museum sprung from one of the most important prehistoric archaeological sites in the world.

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

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This massive underground salt mine now holds a sci-fi theme park in its depths.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A beloved upside-down beacon off the coast of Northern Ireland.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

The ruins of a once-grand mansion in Northern Ireland are now thought to be haunted.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

The atmospheric road was never meant to be so creepy.