One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

This semi-secret storybook hedge maze is also the oldest garden in the city.

A museum in the childhood house of a medical pioneer.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.

Climb to the top of this windmill for a scenic panorama and up-close look at wind energy production.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

An undulating wicker beast looms peacefully atop a sand dune in Belgium.