Performing Arts & Event Venues in Adelphi 1 Performing Arts & Event Venues in Adelphi Adelphi SearchAll (11)Restaurants (1)Bars & nightlife (2)Churches & Places of Worship (2)Civic & Community Organizations (1)Banks (1)Performing Arts & Event Venues (1)Grocery & food markets (1)Electricians (1)Retirement Homes & Senior Living (1)Adelphi Opera House Performing Arts & Event Venues11987 Main St