San Sebastiano is an Early Renaissance church in Mantua, northern Italy.
Begun in 1460 according to the designs of Leon Battista Alberti, it was left partially completed in the mid-1470s, by which time construction had slowed and was no longer being directed by Alberti. As a consequence, little remains of Alberti’s work apart from the plan, which is considered one of the earliest and most significant examples of Renassiances centrally-planned churches. The plan is in the shape of a Greek cross, with three identical arms centering apses, under a central cross-vaulted space without any interior partitions.
Wikipedia https://en.wikipedia.org/wiki/San_Sebastiano_(Mantua)
Official website http://www.lombardiabeniculturali.it/architetture/schede/MN360-01055/
Address Largo Ventiquattro Maggio, 46100 Mantova, Italy
Coordinates 45°9'3.243" N 10°47'17.565" E