Bench
One step is originally a small step for accommodating the ornaments on an altar or buffet. By analogy, the bleachers are the plans of land or structure arranged in the same way, especially in a stadium or amphitheater.
Building tiered
The building means a stepped architectural typology that has been developed by some architects, notably Henri Sauvage.
The "school-tiered gardens"
The term school-tiered gardens is sometimes used to describe the architecture developed by John Renaudie and Renee Gailhoustet , developed following the ideas of the X Team. It is characterized by the integration architecture of terraces planted.
Gradin Spectator
A step is a succession of high plateaus increasing use by spectators can be seated while having a good visibility. There are bleachers without chairs, with a strong riser, with chairs and bleachers. The step is often considered a platform that differs in its constructive principle.

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