Building materials (Quiz #805)

1. Bungaroosh is a composite building material made of brick and stone, shuttered in a lime render. It was used between the mid-18th and mid-19th centuries and has been described as "Probably the Worst Building Material in the World". It was almost exclusively used in one British city - which one?

2. Coade stone is a type of artificial stone, used in the late 18th and early 19th centuries for moulding neoclassical statues and other decorations. Many examples remain today, including Apsley House, No.1, London - the home of...who?

3. How tall would a tower of Lego bricks have to be, so that the bottom brick is crushed by the ones above it?