The pop-up at One Liberty Observation Deck will open every Thursday through Oct. 27 with happy hour specials ($5 beers, $7 wines). You still have to pay (discounted) admission, but the views are probably worth it.
Where: Bar 57 at 1650 Market St. 19103
When: September 29, 2016 at 5:00 p.m.
How much: $14 at the door