Hidden just under the waters around this Turkish island are the ruins of a once great city.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

The heads of two giant mythological water horses honor Scotland's horselord past.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

This colossal war machine is now a living museum dedicated to underwater warfare.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Swiss vineyards in a UNESCO heritage site.

Artworks by loners, prisoners and the criminally insane.

The Habsburgs' royal collections of art and wonders.

Baroque celebration of the end of the Great Plague of Vienna.

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

Op-art architecture designed for happiness.

This small group of sand dunes manages to pack in a strange rainbow of colors.

Home to the most complete dodo remains known - one head, and one foot.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Breathtaking and huge 430 year old maps of Italy.