# Events with no listed price at O’Brien Hall 305 in the next 30 days No events with no listed price at O’Brien Hall 305 are listed in the next 30 days. Each event has its time, place, cost and a link to its source. Calendar feed of this view: https://littlemilwaukee.com/events/calendar.ics?cost=unknown&venue=o-brien-hall-305 No events match.