Highlandtown's Arts & Entertainment District (a.k.a. ha!) is the largest such designated area in the state; encompassing Highlandtown, Patterson Park and portions of Canton and Greektown.  ha! offers artists the opportunity to live and work in one of the most culturally diverse neighborhoods in the city. ha! boasts southeast's largest collection of retail and industrial spaces, along with affordable housing and a convenient location, easily accessible from I-95, I-895, Fells Point and Downtown.

Ha! is home of a Creative Alliance at The Patterson, galleries, artist studios, and retail shops with a variety of activities happening year around including the Salsapolkalooza, the Great Halloween Lantern Parade, the Highlandtown Farmer's Market and Artket, Annual Studio Tours, Sculpture in the Park, the Highlandtown Wine Festival, and the Highlandtown Basement Bar Tour.