When the smoke cleared at the end of the First World War, or The Imperial War as it was then known (because it was fought by empires – British, German, and Russian), a shocked Britain was moved to create memorials all over the country. The Imperial War Museum was the grandest of these and was established by an Act of Parliament in 1920. The building in Waterloo was previously the Bedlam Hospital, established by Henry VIII after he dissolved the monasteries in 1533, which accounts for his name above the columned entrance. No tour is complete without him.

The artist Yoko Ono, who turned 91 in February, has enjoyed a successful—if notorious—career over seven decades. She spent the seventies as the wife of Beatle John Lennon until his assassination in New York in 1980, and appropriately for British audiences, that part of her life forms the core of her current exhibition, 'Music of the Mind' at Tate Modern.