Most of London’s catacombs can be traced to the Victorian era, back when Jack the Ripper first haunted nightmares and fictional, sleuthing characters such as Sherlock Holmes began solving crimes. Gas lamps were as common as railways, and the Industrial Revolution was in full swing. The premiere catacomb locations are the West Norwood and Kensal Green cemeteries. These grounds are famous for their Gothic and Victorian architecture and historical significance. Although devoid of interred corpses, another area of interest for spelunkers is the Camden catacombs that run underneath the Camden Market.