The Futurism exhibition at Tate Modern is worth seeing you are interested in art movements of the early 20th century.
The Futurists (Marinetti, Carra, Boccioni etc) keen to be radical and destroy traditional art took a very traditional route of writing a manifesto of their thinking. War was good, peace bad, fast noisy cars and movement were desirable: they tried to represent movement with some striking results.
The concept is of some interest particularly the links to Cubism (Cubo-Futurism) and Vorticism – and some great paintings by Nevinson.
Standout painting pan-pan by Severini – view from the distance.
See also Estorick Collection