Students of science will swoon at this fascinating museum, stuffed to the ceilings with awesome astrolabes, astonishing orreries and early electrical apparatus. Housed in the lovely 17th-century building that held the original Ashmolean Museum, it displays everything from cameras that belonged to Lewis Carroll and Lawrence of Arabia to a wireless receiver used by Marconi in 1896 and a blackboard that was covered with equations by Einstein in 1931, when he was invited to give three lectures on relativity.