Find yourself hot on the heels of 21st century sleuths sherlock holmes and john watson on this 3 hour black cab tour of londons sherlock filming locations discover sites featured in the popular tv series a modernized version of sir arthur conan doyles detective stories starring benedict cumberbatch and martin freeman see the diogenes club 221b baker street and irene adlers residence follow the route of the soho cab chase and visit sites seen on screen in the upcoming 2015 christmas sp