Palais-Royal is a walled courtyard and garden in the middle of Paris, filled since 1986 with Daniel Buren's 260 striped marble columns, each cut off at a different height and chipped by years of climbing and skateboards. Behind a roofless double row of older columns the garden opens out: gravel walks, lime trees clipped into flat green walls, a round basin, two fenced enclosures thick with ivy and honeysuckle. Traffic runs close on every side, and inside you mostly hear boules landing on the gravel.
The palace itself holds government offices and has no visitor entrance, so the courtyard and the garden are the whole of the visit. The duke of Chartres got the king's leave in 1781 to line three sides with buildings and rent out the ground floors, filling them with shops, cafés, theatres and gambling rooms. Royal police could not set foot on his land, so radical speakers used the garden as a forum. On 12 July 1789 Camille Desmoulins climbed onto a café table here and called the crowd to arms; the Bastille fell two days later.