The crowds can number in the hundreds on weekends and they're causing disruptions according to the business owners.

The Hilton Garden Inn Pittsburgh University Place, 3454 Forbes Ave., says it is “stealing Christmas” with its Grinch-themed pop-up, open Dec. 6-21. Hosted from 3:30 p.m. to close each day in ...

Market Square ... visiting Pittsburgh between mid-November and Christmas, plan to explore the Peoples Gas Holiday Christmas Market. Inspired by the German tradition, this holiday pop-up event ...

She will be one of the 30 aspiring crafters at Handmade Arcade’s “Show and Sell,” a pop-up market of vendors from 9 a.m. to 5 p.m. Saturday at Construction Junction in Pittsburgh’s Point ...