Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

A narrow strip of land is home to the tallest migrating dunes in Europe.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

A black cat protests the City Guild in Riga's Old Town.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

This amazingly preserved Doric temple was abandoned before it was ever completed.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

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

Centuries ago, red and white wine poured from the statue's breasts whenever a new Venetian ruler was elected.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.