It's more beautiful by night, with its light and attractions (one day a jazz concert, the next a protest for Tibet with lights and songs), but it's livelier during the day. This is one of the nerve centres of the Swedish capital; in the square you'll find the theatre, the headquarters of the Swedish bank, shopping centres, a supermarket, the Centro Metral Station and some traders' galleries. It is named after Johan Sergel, a sculptor whose studio once stood in the square. In the centre is a pedestrian area where people go to eat before going shopping. The central monument is a glass obelisk, which lights up at night.