The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

A fantastical bed and breakfast with magically unique rooms.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

These medieval ruins have survived since the 12th century, even providing shelter from the Nazis.

To the famous surrealist artist, liberty required two torches held high.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

One woman's decades-long obsession with the "La Fée Verte."

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

Two small chapels housed inside an ancient tree.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

These quaint French houses dangle precariously over a precipice.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

An icy lake tucked among jaw-dropping alpine panoramas.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

The history of radiation is on safe display at the foot of a radiation science laboratory.