Las Vegas has seen a lot of changes in the last 30 years, but McCarran International Airport has been relying on the same air traffic control tower for almost that long. But the old air traffic tower will soon be history, replaced by a new facility at 352 feet tall. The Federal Aviation Administration broke ground Tuesday on the $99 million tower, which will open in 2015 in the area between the under-construction Terminal 3 and the Airport Connector Tunnel.