Tiny artwork tucked within glass letterboxes form this hidden gem of an art gallery.

An ancient Egyptian temple in the middle of Madrid, Spain.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

A sanctuary for wolves in a community which once trembled in fear of the murderous "Beast of Gévaudan."