Cathy Burnheimer is turning the cake world upside-down. Her innovative cake designs push the boundaries and defy gravity. “We’ve done chandelier cakes that have hung inverted,” said Cathy Burnheimer. “One was at the Omni William Penn for a wedding. It was a five-tier cake that hung from the chandelier.” The Omni William Penn is a 23-floor hotel located in downtown Pittsburgh, Pennsylvania. The grand hotel has been host to many visiting luminaries including John F. Kennedy, Barack Obama, Mick Jagger and Ewan McGregor—just to name a few. Brides and grooms and other “high society” events regularly rent the famous balconied Grand Ballroom. The hotel was designed in a Renaissance Revival style—which means ornate, Classical details everywhere and tall, interior arches. Impressively decorated ceilings and cornices set the scene for a formal affair. (If you’re lucky enough to visit, be sure to look up!) “To have the Omni as my inspiration…