RSA–BankTrust Building, Office tower in Mobile, Alabama.

The RSA-BankTrust Building is an office tower in downtown Mobile with 34 floors rising approximately 130 meters (424 feet) into the skyline. The structure features mirrored glass and tinted windows that create a reflective, contemporary appearance throughout the facade.

The building was completed in 1965 and stood as Alabama's tallest structure for two decades. Its prominence in the skyline ended when another high-rise in Birmingham surpassed its height in the mid-1980s.

The building occupies a site central to Mobile's financial landscape, replacing structures that once anchored the downtown economy. This location reflects how the city's business district has evolved and shifted its focus over time.

The tower stands at 424 feet on the downtown Mobile grid, with its entrance at street level; the lobby floor is leased by Trustmark. Visitors heading to the 34th-floor restaurant take the elevator from the ground floor. The building sits among other office towers, so approach on foot from the surrounding blocks.

The 34th-floor restaurant, Dauphin's, sits in a tower that was Alabama's tallest from 1965 until 1986, when Birmingham's SouthTrust Tower passed it. The building lost its Mobile height record in 2007 to the RSA Battle House Tower. Its site was cleared in 1963, demolishing a 1913 First National Bank building and an 1853 Neo-Renaissance customs house.