
For two days in March, the Thames Tunnel was opened to pedestrians for the last time in the foreseeable future. A friend happened to have one spare, so along I went and discovered the 8th wonder of the world for myself.
One of Isambard Kingdom Brunel's first major engineering projects, the tunnel was designed to link London's biggest docks so that cargo could be carried back and forth by cart, instead of by boat. However it was mainly used by pedestrians, and later, in attempts to revise it's notorious reputation as a hide-out for thieves and vagabonds, it saw many Victorian fairs and entertainments. As described by an American traveller in 1851:
And thus you go down — down — to the bottom of the shaft eighty feet... Arrived at the bottom, you find yourself in... a round room, with marble floor, fifty feet in diameter. There are alcoves near the walls in which are all sorts of contrivances to get your money, from Egyptian necromancers and fortune-tellers to dancing monkeys. The room is lighted with gas, and is brilliant.
During it's construction, there were many a flood. One such killed six workers, and Isambard himself was carried along down the tunnel and spat out the shaft at the other end! But perhaps the most tragic and poetic image that I took from my visit to the tunnel was the story of the songbirds. Hung in cages, they would trill and sing at the forefront of the work. If ever they fell silent the workers would attempt an escape, knowing that most likely the birdie had expired in a cloud of methane. These would catch alight from the gas lamps and form a bloom of fire that would chase them down the tunnel and up the shaft. The workers encountered the forces of water, fire, earth and air, little songbirds bordering the unknown.