Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

A standing relief of a Norman knight whose posture marks him as a Crusader.

Certain traditions prevail on the least-visited island of the Aran Islands.

The modern birthplace of Irish freedom.

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

These imposing walls and towers look more like the ruins of a fortress than a monastery.

The chaotic studio of one of the 20th century's most important artists has been preserved down to the dust.

The house where the writer spent his formative years.

A 141-foot wave of crashing lumber guards the entrance to the Grand Place in Mons.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

A lovely biographical museum in the artist's home of 24 years.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Lavish royal estate punctuated with heated greenhouses.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

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.

Venice's island of the dead.

This seven-sided Romanesque chapel is regarded as the oldest building in Rovinj.

The local club's soccer field is practically surrounded by UNESCO-protected monuments.

This ancient Roman aqueduct once funneled water to Diocletian's palace.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.

Gargoyle head that brings good luck.

When this monument to Slovenia's national poet was erected, it's said to have sparked the ire of nearby church authorities.