Interesting, Random Facts, Daily FactsCuriousOneJuly 29, 2018Drivers, Dotted, Verified, Built, Only, Shelters, London, There, Facts, staycurious, Around, Secret, Green, Fact, EnterComment There are 13 secret green shelters built in 1875 dotted around London that only cab drivers can enter. Interesting, Random Facts, Daily FactsCuriousOneJuly 29, 2018Drivers, Dotted, Verified, Built, Only, Shelters, London, There, Facts, staycurious, Around, Secret, Green, Fact, EnterComment