No PP landside lounges remain. The only remaining landside lounge that I'm aware of is a VS lounge.

The Int'l terminal has a museum (separate room), as well as the airport itself being a museum. The Int'l terminal has a series of display cases along each end (the A and G sides) as well as along the back wall - currently displaying flight crew uniforms from years' past.

There are a series of restaurants on each side of the landside portion of the Int' terminal, but at least one end is undergoing a large renovation.

The loop around the landside portion of the airport is a nice walk (maybe 20 minutes) but if you have much luggage, perhaps not so fun.