Baltimore World Trade Center

The Baltimore World Trade Center is a 30-story skyscraper located on the Inner Harbor of Baltimore, Maryland designed by the architectural firm Pei Cobb Freed & Partners with principal architects Henry N. Cobb and Pershing Wong. Planning and design of the building began in April 1966. Construction started in October 1973. The building was completed in January 1977, and its construction cost was of $22 million. Rising 405 ft (123 m) above the one-acre plaza where it stands between Pratt Street and the harbor, the building is 30 stories tall when its basement, lobby level and upper utility level are included in the count. Gross floor space covers 422,000 sq ft (39, 200 m2). Major building components include 309,000 sq ft (28, 700 m2) of office floors, a lobby of 13,000 sq ft (1, 200 m2), a basement of 20,800 sq ft (1, 930 m2) and 38,000 sq ft (3, 500 m2) of ground-level plaza. It is the world's tallest regular pentagonal–based skyscraper (the pentagonal-based JPMorgan Chase Tower in Houston is taller, but is not regular).

Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).