It's known as a great place to lounge by the pool with a summer cocktail in hand, but the rooftop bar at the Donovan House Hotel is becoming winterized this weekend. An ice bar, complete with ice sculptures and fire pits, has been constructed and will be open to the public starting Friday. Because it's an ice bar, vodka cocktails will be available, along with mulled wine, hot sake and champagne. The ice bar will be open Fridays and Saturdays from 5 to 10 p.m. through February.