Old St. Pat’s Church might be one of the oldest public buildings, but it also hosts the World’s Largest Block Party off-site at the UIC festival lot. The block party will host food vendors like Connie’s Pizza, and main stage performers 7th Heaven, JD McPherson, and Passion Pit. Old St. Pat’s throws the Block Party to fund their social justice initiatives and outreach programs locally and abroad, and to strengthen the mission of the church. General admission will cost you $40 and includes three drink tickets. You can instead splurge for access to the VIP lounge, which offers proximity to the main stage and five drink tickets for $90. You must be 21 years or older to attend.