The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Spend the night in this formerly abandoned traditional Scottish village.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

A surrealist timepiece by the artist of melting clocks.

A stunning medieval castle houses this eclectic, interactive tribute to all things wine.

A wood-and-steel sculpture garden featuring an artful interplay of nature and machinery.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

Beautiful views and Roman-style statues on the Italian coast.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

The glowing blue Nymphaeum of Emperor Tiberius.

Geothermal waterfalls in Tuscany.

A 16th-century horror show built in a lovely Italian garden.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

A wonderfully preserved example of London's 1960s-style high-density, low-rise public housing.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.