The genius who painted the Sistine Chapel was also rude, puerile and a tad pornographic. Waldemar Januszczak deciphers the real Michelangelo

It’s dumbed-down and dumber at the National, with its trite Americans in Paris. Move over, Rolf Harris, says Waldemar Januszczak

In 1965, Lennart Nilsson’s image of a foetus amazed the world. Now his camera has gone further — deeper into the mysteries of life

The Dutch landscape sexy? Yes, if it’s one by Jacob van Ruisdael. Waldemar Januszczak savours the views at the RA

How did a defrocked Swiss cleric have such a lasting — and scary — impact on British art, asks Waldemar Januszczak

Ignore the Tate’s attempts to analyse Martin Kippenberger — just hold tight and prepare for the chaos, says Waldemar Januszczak

In Japan’s volcanic ranges, man and monkey share the ultimate hot tub. Waldemar Januszczak takes a dip

Ugo Rondinone is a one-man antidote to modern life, says Waldemar Januszczak

Never mind the shock of the new — two East End shows by veteran artists are revelations, says Waldemar Januszczak

And Dan Flavin said, let there be fluorescence, and there was fluorescence. And Waldemar Januszczak saw that it was good. But what did it mean?