The building opened in 1982 and is faced with Indiana limestone.

[2] From 1982 to 1990, the OneAmerica Tower was the tallest building in the state of Indiana.

The rest of the building is not accessible by the general public due to the addition of electronic turnstiles in front of the elevators in the lobby.

Since 1984, OneAmerica Tower has hosted "Bop to the Top" (originally called the "AUL Stairclimb").

Participants climb 500 feet (150 m) and 790 steps to raise money for charities.