A small gallery in Kensington gardens, where you enjoy quality art in a peaceful atmosphere. Currently exhibiting Leon Golub. Although aesthetically his art doesn't appeal to me, it's ideology does!
They've got two lovely galleries - original and Sackler - in the heart of Hyde Park. It's enjoyable to come to see Serpentine Pavilion every year when the weather is good.
If you love architecture, this place needs no introduction. If you don't, how interested would you be in visiting a place that every year gets a new look designed by fancy and very clever people?