Snellen chart. A wall chart developed by a Dutch ophthalmologist Hermann Snellen in the 19th century, which is still used today to measure visual acuity. It consists of 11 lines of block letters of decreasing size, which are to be read at a distance of 6 metres (20 feet).
See bridge in maps. Pont de Normandie is a cable-stayed road bridge that crosses the river Seine and contect Le Havre to Honfleur in Normandy, in France. The bridge was designed by Michel Virlogeux. Construction began in 1988 and the bridge was opened in January 1995.
Arc de Triomphe. In the middle of the Place Charles de Gaulle, at the border of the 8th, 16th and 17th arrondissement stands one of the greatest arches in history: the Arc de Triomphe (arch of triumph). Napoleon's Triumphal Arch.