in Milan, museum devoted to the evolution of science since the 15th century, including transport, metallurgy, physics, and navigation. It is housed in the old Olivetan convent of San Vittore, which dates from the early 16th century. The building has fine frescoes by Bernardino Luini. The Leonardo Gallery contains models of machines and inventions by Leonardo. Other galleries illustrate aspects of physics, astronomy, radio communications, optics, and telecommunications. There is also a collection of early motor cars. In an outside pavilion are some steam locomotives and airplanes.

A separate section founded in 1922 displays ship models and navigational instruments.