The oldest Roman lighthouse still in use.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

Iron Age runes and ruins hide in plain sight along this Portuguese beach.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

The "Little Ones," show Portugal in full miniature splendor.

The corpse bride of Portugal.

Cliffside houses provide a spectacular view from their perch above the valley.

Commonly acknowledged as the only public monument to the Devil himself.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

An ancient Egyptian temple in the middle of Madrid, Spain.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

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

This ship carrying cargo and four church bells for the Catedral Metropolitana Nossa Senhora Aparecida ran aground in 1968.

Rolling sand dunes of the Sahara... in the middle of the Atlantic Ocean.

Over 4,700 miles of trees being planted to hold back the desert.

Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

This abandoned bunker looks out over the Atlantic from its clifftop perch.

This deceptively salty lake looks like blushing pink lemonade.