This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Stadiumdemo. demonstration of stadium seating's eyeline benefits over standard seating Stadiumseating UTC Stadiumseating Derek Jensen Tysto August derivative work TheHYPO talk Duplicate and improve seating angle and create eyeline demonstration TheHYPO Stadiumseating Tystogeneral Architectural diagrams Uploaded with derivativeFX