Howl-O-Ween on Park City's Main Street is spooky fun for locals and their four-legged friends. Photo courtesy of Park City Municipal CorpPark City, the town, is like that girl who hands out swag bags at her own birthday party. “Everyone from kids to dogs to retirees comes to the event,” says Chris Phinney with the Historic Park City Alliance. “All the merchants on Main Street, from bars and restaurants to clothing stores and art galleries, pass out candy. Photo courtesy of Park City Municipal CorpBut it’s the costumes, Phinney says, that are unrivaled.