The six-sided towers are connected by an atrium with a glass barrel-vaulted roof (which officials there would not let me photograph). The white concrete and tinted glass facade is enlivened with painted orange mullions. Each skyscraper has a decorative centered "window" at the top--a post-modern variation of the Palladian (or Venetian window).
Left: entrance to the atrium connecting the two towers; center: loggia along the side of the facade; entrance into the towers