The facade of this 16th-century building is decorated with carvings of 300 seashells.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

The world's largest wooden structure.

This castle has links to Portugal’s founding and struggles for independence.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

This ship offers visitors the chance to spend the night aboard a former floating hospital for fishermen.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

This chapel is the site of a yearly pilgrimage that originated during the Middle Ages.

A cluster of granite granaries perched on stilts.

These narrow stone granaries have been used to store and dry out grain for hundreds of years.

A hidden three-foot-wide house separates these two regal churches.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

Elaborate tile work in this railway station tells the story of Portugal.

The stunning interior of this Gothic church is covered in ornate gold details.

This giant sculpture made of trash is a critique of society's wastefulness.

One of the world’s longest pedestrian suspension bridges.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

Come for the bread-themed puppet show, stay for the buffet.

A small sanctuary carved into the mountainside near the tallest point in continental Portugal.

This tower once served as a radar station during the Cold War.

These 400-year-old ruins are all that's left of the monastery where Ines de Castro was assassinated by the King of Portugal.

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

One of the largest Roman settlements in Portugal.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.