I've got two.
Here's the first.
Los Angeles Memorial Coliseum, home of the USC Trojans, and also home to the 1984 Summer Olympics. When I was out in LA, the security guards let me in for a few minutes, and picture yourself being the only person sitting there on a beautiful summer day and looking out over the field where some of your favorite players have played since you started following the team 23 years ago.
Capacity 92,000.