Architectural Wonders

For this challenge, Duff Goldman and his squad face off against Timbo Sullivan and his teammates, Sarah Ono Jones and Sarah Myers. The cakes must feature dazzling architectural detail on the outside and inside. The bakers take very different approaches, and it will be up to judges Amaury Guichon, Sherry Yard and Drew Scott from Property Brothers to decide which cake wins $10,000 and becomes eligible for the grand prize.