Grab your passport and dust off your time machine, as Abertoir regular Gavin Baddeley wants to take you on a journey. And few tour guides are better qualified to take you on the worst city breaks 4,000 years of history have to offer. In his unholy cross between Tripadvisor and the dodgiest urban planning lecture ever delivered, Gavin promises to take us to the sweaty core of cities so depraved, decadent, dangerous or downright wrong as to make New York's 42nd Street at its worst seem quaint and tranquil by comparison...