A small but charming botanical garden that contains many exotic plant species.

On a trail in Portugal's Barão de São João National Forest, a pile of faces look up at hikers from the forest floor.

Little-known artist couple chose a former silk factory as the location for a museum dedicated to their work and other avant-garde art.

Panoramic views from the mountains over a facility built to provide tuberculosis patients with fresh mountain air.

This tile-work piece featuring a chicken riding in carriage is both a remarkable artistic creation and a social commentary of politics and culture in 17th-century Portugal.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

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

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

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

A former prison complex now displays a historic collection of inmate artwork.

The crypts are so large they're basically their own underground church.

Building owners can take out tiles for free at this repository for historic building materials.

A scientific observatory managed the largest Portuguese astronomy research unit.