Alex Praglowski Aviation
A 7 story parking garage that offers an elevated view of runway 17L/35R. This spot is best used for arrivals on runway 17L. To see aircraft parked on the north side of Concourse E, you can go into the terminal and get some photos from the easternmost end of the check-in hall (the other red area highlighted below), which is currently unused and was built as an endpoint for an additional +15 walkway for future expansion of P2.
Aircraft on 17L/35R are pretty far away, so this spot isn't as recommended as some of the other 17L/35R locations. Along with that, parking here costs $10.00 per hour or $27.95 per day. Alternatively, you could park at P2 Short Term and take the elevator to the top level, which, for the first 30 minutes is $3.75, and $4.75 for the next 30 minutes. Like P1, this spot isn't so great if you have a vehicle, but if you're just hanging around the airport, this is a great place to go.
This area can be accessed by heading towards the airport terminal building and keeping left. Entering the parkade area, look for the sign saying "P2 Long Term" with a US flag and enter through those gates. Continue up the spiral ramp to the top, and head towards the easternmost end.
No issues have been had at this location, although Airport Security doesn't like having spotters up here. If you're approached by them, be respectful and explain. They'll most likely leave you be.