An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

A neighborhood church's unusual abstract stained glass was the final project of avant-garde artist Jean Cocteau.

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 abandoned anti-smuggling station decays along the boundary between Portugal and Spain.

An 11th-century medieval castle cascades over the town of Numão.

A chunk of the "true cross" is held in this small Portuguese church where modern day exorcisms are said to be common place.

Europe's largest collection of matchbox designs is a fascinating exploration of the cultural history of the world.

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

This star-shaped military outpost is now simply trying to protect itself from neglect.

The corpse bride of Portugal.

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