Alternate Worlds

Arcades

An arcade is a succession of arches, each counter-thrusting the next, supported by columns, piers, or a covered walkway enclosed by a line of such arches on one or both sides. In warmer or wet climates, exterior arcades provide shelter for pedestrians.

Arcades go back to at least the Ancient Greek architecture of the Hellenistic period, and were much used by the Romans, for example at the base of the Colosseum. Church cloisters very often use arcading. Islamic architecture very often uses arcades in and outside mosques in particular. In Renaissance architecture elegant arcading was often used as a prominent feature of facades, for example in the Ospedale degli Innocenti (commissioned 1419) or the courtyard of the Palazzo Bardi, both by Filippo Brunelleschi in Florence.

Wikipedia