Indianapolis, colloquially known as Indy, is the state capital and most populous city of the U.S. state of Indiana and the seat of Marion County. There’s always something happening in Indy: a city of world-class attractions, sports teams, and inspiring festivals, shows, and concert line-ups. Explore the complete list of Entertainment Venues in the city. Heated sports battles, chart-topping entertainers, concerts, musicals, shows, and colorful city celebrations are on the books.