The most notable architectural feature of the complex is the south façade of the Robinson Center Music Hall, a building constructed in 1939 to a design by architects Eugene J. Stern and Wittenberg & Delony.

[2] It is adorned with columns that echo the Greek Revival style also found in the centerpiece of the plaza, the Old State House Museum.

The music hall was added to the National Register of Historic Places in 2007, as the Joseph Taylor Robinson Municipal Auditorium.

It features multiple meetings spaces, ballrooms and a terrace capable of hosting weddings, conferences and conventions for a wide variety of organizations.

Robinson Center is administered by the Little Rock Convention & Visitors Bureau, a city government division which maintains its primary offices inside the Cromwell Building across the plaza from the hall.