Eight Forty One is a 309 feet, 22-floor office building on the south bank of St. Johns River in Jacksonville, Florida. Completed in 1955, it was the tallest building in the city for 13 years until surpassed by the Riverplace Tower. It was “The Tallest Office Building in the South” and the tallest in Florida until NASA’s Vehicle Assembly Building was completed in 1965. The building’s former names include the Aetna Building, Prudential Plaza I or One Prudential Plaza, and the Prudential Building.