Today 39 out of 110 City livery companies own premises in London, as well as the Watermen and Lightermen which although not strictly a livery company, retains headquarters still in regular use. Among the earliest companies known to have had halls are the Merchant Taylors and Goldsmiths in the 14th century, and, uniquely, the kitchen and the crypt of Merchant Taylors' Hall survived both the Great Fire of London and the Blitz, the kitchen now having been in uninterrupted use for over 600 years.