Victoria and Albert is the world’s greatest museum of art and design. They have lots of work about Medieval & Renaissance and aslo exhibit neo-avant work, most of them are sculpture and ceramics.
Tate morden is a site of interchange, a conttemporary equivalent to the agora of ancient Greece that was the marketplace for all manner of goods as well as a place for the exchange of ideas. Your must go to Tate Morden if you are a modernism artist and you like contemporary arts. They are many modern art master's work. For example, Picasso, Rothko, Georges Braque, Claude Monet. I had been there 3 day. I learned what is the avant -garde culture, and how the artist build the models and concepts.