Achill's most recently abandoned village dates back to to the Age of Enlightenment.

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

The oldest licensed distillery in Ireland.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

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

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

These engineering masterpieces are a dominant feature of the Belfast skyline.

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

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.

Dine amidst exotic plants at this former royal greenhouse.

Legends surround an ancient tree trunk riddled with nails for good luck.

The final resting place for the remains of 143 Habsburg royalty.

The beautiful baroque library of the Hapsburg empire.

This preserved village shows the modest lifestyles of the area's 19th-century Chinese gold miners.

New Zealand's epic shrine to all things puzzling.

This strange geological landscape erupts with sudden bursts of water.

Tubing through a cave lit with glowworms is a magical underground experience.

A memorial to a goat culled during a foot and mouth disease outbreak guards a series of fantastical caves.

The largest 19th century panorama in the world still in-situ.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.