The Easel

Tate Modern anniversary: 20 years of wow

Tate Modern is the world’s most visited modern art museum. Lacking the huge permanent art collection of MoMA, Tate has instead innovated with exhibitions that follow a theme rather than a chronology. Its 660ft Turbine Hall has reshaped thinking about the showing of art. Overall impact? MoMA has recently rehung its collection to de-emphasise chronology. And urban power stations are now viewed with a new sense of possibility.