1. This 1920s Penthouse Apartment on the Champs-Elysées The apartment of M. Charles de Beistegui, Paris, France, 1929, built by Le Corbusier the Swiss-French architect, designer, painter, urban planner, writer, and one of the pioneers of what is now called modern architecture. Found on the Fondation Le Corbusier website. 2. When both sides of the Channel tunnel…