At first glance, a visitor may not notice one of the most unique aspects of the Mid-Continent Tower. Surprisingly ennough, the Mid-Continent Tower is in fact two buildings. The 16-story Mid-Continent Building was completed in 1918. The 36-story Mid-Continent Tower was completed in 1984 ... 65 years later.

Because the original structure was not strong enough to support the weight of an additional 20 floors, a cantilever design was used to suspend the new Tower over the older building at the 16th floor. The two structures do not touch.