This concrete flower towered over the roof of the 4 Embarcadero Center. Notice the spiral ramp that is part of the sculpture and provides access to all three floors. This shot was taken from a room in the Hayatt Regency Hotel.

"The Tulip" on a foggy day with the Hyatt Regency Hotel in the background. The fog had just begun to burn off.

A view of "The Tulip" looking up from the top floor of the 4 Embarcadero Center. Behind the sculpture was the 4 Embarcadero Center highrise.

The base of "The Tulip" sculpture was surrounded by a rich arrangement of foliage. That garden was itself surrounded by a small fountain, unseen here.

Oner of the arms that held up the spiral ramp that led from floor to floor in the shopping area.

Small lamps lined the edge of "The Tulip" sculpture. They were off during the day, no matter how gray or overcast the day, but were lit at night.

A water stained, chrome metal sign identified the sculpture as: "John C. Portman jr. (Georgia) The Tulip 1981 concrete."

"The Tulip" sculpture as viewed from the outdoor portion of the 4 Embarcadero Center. Here, the Hayatt Regency Hotel lay behind the sculpture.

A detailed close-up of "The Tulip" sculpture. Note the cross braces in the center. Also notice how the lights are set into metal pieces that run the length of the interior edge.

A detail shot of the top of "The Tulip" sculpture. Notice how the interior bracing is box-like, whereas the petals are formed from relaxed curves.

The petal tips of "The Tulip" sculpture with their edging of small lamps.