Three vast, brightly painted female figures by the Franco-American artist Niki de Saint Phalle, installed in 1974 on the Leibnizufer just south of the Old Town. The sculptures — each three metres tall — are the most recognisable piece of public art in the city and the start of the marked "Red Thread" walking tour through the old centre.
A free brochure for the Red Thread is available at the tourist office on Ernst-August-Platz, with a painted red line on the pavement linking 36 sights.