"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

A neolithic tomb converted into a tiny chapel.

This crumbling Portuguese ruin overlooks the populace it once ruled.

Pagan monument converted to Christianity with the population.

A glacial valley filled with silver beech trees in the mountains of Portugal.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

A small Portuguese cottage formed between boulders in the countryside.

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.

A cluster of granite granaries perched on stilts.

When this former hospital pharmacy closed in 2013 it already looked like a museum, so they turned it into one.

An abandoned tuberculosis hospital said to be haunted by the patients who died within its walls.

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

Ancient catacombs form the foundation for this Rococo orgy of a church.

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

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

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

The world's oldest bookshop still in operation.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This charming candle shop has been in business since 1789.