From a construction manager's perspective, the sheer logistics and buildability of the pyramids are mind-bogglingly complex. Many theories exist about how they were built, but none seems convincing. I wouldn't have minded sitting on the interview panel with Tutankhamun assessing the bids from the local builders.
My blunder is the Tricorn Centre in Portsmouth. It's a car park, shopping centre, a series of public lavatories and a monstrous concrete blob in the town centre. I grew up close to Portsmouth and have often wondered what people entering the UK through the ferry terminal there must think of our country when faced with the Tricorn. It should be demolished.
Ian Eggers is an operations director with Mace, and this year's Building Manager of the Year.