A 16th-century Andalusian palace.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

This whimsical stacked cabin looks like something out of a children's book.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

The world's largest wooden structure.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

The final resting place of the great navigator, or maybe his brother.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

A perfect replica of the beloved show's first set.

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A display of magnificent stained glass windows is the first exhibit of its kind.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

The oldest volcanology research center in the world.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

This subterranean shrine beneath a bike rental store celebrates the iconic Italian scooter.

A crumbling watchtower and a lighthouse overlooks the site believed to be the Sirens' cliff in the "Odyssey."

The Emperor Tiberius' palace of debauchery.

The glowing blue Nymphaeum of Emperor Tiberius.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

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