The rooftop bar is an icon of summer fun for young professionals in the city. But the lines and crowds mean that true work-hard-play-hard types are left looking for a more exclusive option. Enter Thursdays on the Roof. Every week in the warmer months, tastemakers admire the setting sun and the glistening Indianapolis skyline from the Regions Tower rooftop. At that glassy skyscraper, bartenders mix up cocktails and a live band entertains the attendees before a DJ mans the booth to spin tunes late into the night. Guests can pick and choose the parties they attend or get a season pass for admission to every event.