In architecture, an Arcade is a passage or a walkway that is covered by arches or vaults. It can also be a covered walkway with arches (towards a place or a street).
Arcades on the Alster in Hamburg
The casa peso, which was an money exchange office during fairs at Medina del Campo, Spain
An arcade in Bucharest
A sunlit arcade in a school in Havana, Cuba
The roman Aqueduct in Segovia, Spain
The market place in Münster, Germany
Arcades giving on a cosed square. This is the Münzhof in Munich