The Minnesota Vikings unveiled designs for a proposed new stadium that will feature significant amounts of glass in order to simulate the feeling of being outside in an indoor stadium.

The stadium is nearly twice the size of the Metrodome and will seat 65,000 fans for NFL games, but be expandable to 73,000 for special events such as a Super Bowl.

The stadium will not feature a retractable roof, which was one element many fans wanted to see. The architects hope the glass will compensate for it.