Countdown in the sky

What Party overlooking the city from 51 floors up. Ticket includes dancing to a DJ, a charcuterie and dessert spread, spiked hot chocolate, binoculars and party favors, plus a free glass of champagne at midnight.
Where SkyGarten at Top of the Tower at 3 Logan Square (1717 Arch St.)
When December 31, 2016 at 8:00 pm
How much $51