Aria (formerly known as the Lewis Tower Building) is a 33-story Art Deco skyscraper in Center City Philadelphia designed by the firm Edmund Gilchrist.

An exceptionally slender building, is historic structure was one of the city's tallest office high-rises until the skyscraper boom of the late 1980s.

The building has undergone extensive interior remodeling and exterior renovation (including facade scrubbing and treatment) and has been renamed Aria, a nod to the building's location just off the Avenue of the Arts, Philadelphia's premier performing arts corridor.

Prior to purchasing the Aria Building Oller was the founder and CEO of The Wentworth Group, The largest property management company in the United States.

The Aria, formally the Lewis Tower Building, was a turn around condo conversion- The sales team which spearheaded the successful turn around was The Condo Shop a condominium marketing firm.