In late 19th century Brussels, the Art Nouveau movement was laying the foundations of a new concept in architecture, and Victor Horta was the movement's grand master. Of all his works, the Hotel van Eetvelde features the boldest display of his modernity.

The Garnier Opera by Charles Garnier This is Paris's most prestigious 19th century building, the pinnacle of the "Beaux Arts" style with its ornamented facade, transfigured by the excesses of a theatre-mad architect in the mid-1800s.