
From this A/P article:
Las Vegas created its own giant cake last weekend in celebration of the city's 100th birthday. The cake, assembled by 600 volunteers, weighed 130,000 pounds and measured 102 feet long, 52 feet wide and 20 inches high.
The previous record was set in 1989 when Fort Payne, AL created a 128,238 pound Alabama-shaped treat for its' centennial.