Nite Owl's secret basement, where he keeps his superhero suit, owl-shaped flying machine and other superhero shit.
oh, and basement has A SECRET EXIT TO THE CITY!
P1: Dude, did you see "watchmen"
P2: Sure yeah, bro
P1: Who'd you like the most?
P2: Guy with discount batcave
P1: You mean the batman copycat, the nite owl?
P2: sure thing bro.