London’s five billion pound Super Sewer is now fully connected and promises a cleaner, healthier River Thames. The 150-year-old sewer network has struggled to cope with the twin challenges of an increase in the population it serves in the capital (from four million people when it was built to over nine million today) together with climate change. With rainfall overwhelming the system, it sometimes discharges into the Thames. With the Super Sewer fully connected, 95% of those spills are stopped.

Rising elegantly above the River Thames halfway between the Tower of London and Big Ben is the Temple. Inner and Middle Temples, and beyond them Lincoln’s and Gray’s Inns make up the four Inns of Court. Here are time-forgotten havens of shady courtyards, scented gardens, and spooky gas-lit passageways. For hundreds of years, lawyers in their chambers and courtrooms have beavered away, crafting and refining the Common Law.