The cappella dei Mercanti, Negozianti e Banchieri (chapel of merchants, shopkeepers, and bankers), better known as cappella dei Mercanti, is a Catholic chapel in the historic city center of Turin, Italy.

The chapel, whose construction was authorized during the 16th century, was built at the end of the 1600s and most of the artwork it contains originated in the 1600 and 1700s, in the baroque style.

The sacristy hosts the Perpetual Calendar built by the engineering Giovanni Plana, a primitive computing machine.

Text from Wikipedia (CC BY-SA 4.0). Photo: Ivan Ruggiero I'd appreciate if you could mail me (ivanrugg+credit@gmail.com) if you want to use this picture out of the Wikimedia project scope. Please attribute as: Ivan Ruggiero (Wikimedia), CC BY-SA 4.0, via Wikimedia Commons.