Architect Mohammed Nasr vacationed in the Yucatán just before he was set to design downtown's Heritage Plaza in the 1980s. His time in Mexico is directly reflected in the building's postmodern design; the building's cap is a granite stepped pyramid inspired by the Mayan constructions he saw there, and the interior lobby shows off more Mexican influence with a plaza-like design. The building is one of the last projects of this scale to be completed before the economy took a turn for the worse. Heritage Plaza stands as a gleaming expression of Houston's then-wealth and optimistic future.