Planting
There are stadia, particularly in the USA, which have virtually no planting as a conscious part of the overall site philosophy. Pontiac Silverdome in Michigan is one. Another is the Three Rivers Stadium in Pittsburgh where the approach has been to allow the structure to be seen for miles around. The siting of the Three Rivers Stadium at the junction of the rivers which flow through Pittsburgh is certainly one of the most striking to be found anywhere, particularly when approached from across the river.