You can’t miss the world’s most iconic art gallery. It’s huge (34,550m2, 325ft high, 4.2m bricks,) and brave (100 years of paradigm-busting art) and loved (1/4billion visitors a year). London’s only building to be opened twice by the Queen, Tate Modern will open your mind, fill your heart and show how art has bettered the world. This temple of awe and creativity is Bankside’s beacon, as Instagram will testify. Don’t be shy. Come on in. Free to all.