Webb Patent Sewer Gas Lamp

You really can find anything in London.  My friend Chris was just visiting and one place we stopped was a little off the beaten path and was instead on the "smelly path."  Apparently, this is the last remaining Gas Lamp in London.  It was invented in the 19th century to utilize  the fumes from sewers.  Well, maybe it's energy efficient, but I'm kinda glad all of London doesn't smell like Carting Lane, the home of the the Sewer Lamp.  It runs all day and night though :)