Colle di Val d’Elsa, Italy — Two people walk up Via San Sebastiano. which connects “Colle Bassa,” the lower, more modern portion of Colle di Val d’Elsa, with “Colle Alta,” the ancient town up on the hill. Colle di Val d’Elsa is a town of 20,000 in the province of Siena in Tuscany, southeast of San Gimignano.