Florence continues to up the contemporary ante in piazza della Signoria, following feather-ruffling shows by Jeff Koons and Jan Fabre. The man of the hour is Urs Fischer, the Swiss artist who first rose to fame in 2011 with a full-size wax replica of Giambologna’s The Rape of the Sabine Women, presented at the Venice Biennale. This exhibition will feature two wax candle sculptures placed on the Arengario of Palazzo Vecchio, which will gradually melt over the duration of the show, underscoring the finite nature of our existence. A second highlight will be the 12-meter metal sculpture Big Clay, on loan from the V.A.C. Foundation Collection and in dialogue with the Torre di Arnolfo.