An Extravagant New Embassy in London

Feb. 23: A model of the winning design for the new U.S. Embassy for London. (AP)

Philadelphia-based architecture firm KieranTimberlake has won the closely watched competition to design the new U.S. Embassy in London. Pictured here is an interior rendering of the design. (Courtesy Of KieranTimberlake)

The design calls for a secure and environmentally efficient glass cube set atop a colonnade in a landscape with a pond and pathways open to the public. (Courtesy of KieranTimberlake)

Philadelphia-based architecture firm KieranTimberlake has won the closely watched competition to design the new U.S. Embassy in London. Pictured here is an exterior rendering of the design. (Courtesy Of KieranTimberlake)

An artist's rendering offers a look at the new embassy and its surroundings. (Courtesy Of KieranTimberlake)

Feb. 23, 2010: Architect James Timberlake, left, from KieranTimberlake and landscape architect Laurie Olin of Olin Studio pose in London with their winning design for the new U.S. embassy to be built in London. (Reuters )