http://www.museoscienza.org/english/leonardo/leonardo.html
An easy to explore website created by the National Museum of Science and Technology in Italy with a special focus on over 100 scale models built
according to designs gleaned from Leonardo¹s notebooks. (in English)

http://www.leonardoshorse.org/index.asp
Tells the story of Charles Dent, an American business man who was inspired to see to completion the great equestrian statue that could not be completed in Leonardo¹s time due to the invasion of Milan by the French in 1500. The 24-foot bronze Horse was presented as a gift to the people of Italy on September 10, 1999.