Horizontal and vertical trellises on which to grow creepers and flowers, pergolas do not just create cool shady areas, but real green, fragrant and cosy roofs and walls. Borrowed from the Renaissance gardens of the nobility or those of humbler/more modest country houses, the pergola represents a little romantic luxury in the small spaces of our cities or simply a natural way to provide privacy in an open space while reducing the thermal and acoustic impact. They can also create a vertical urban garden.