Isle of Man TT is the world’s most dangerous racing track. Isle of Man TT is in the UK. The International Isle of Man TT (Tourist Trophy) Race is a motorcycle sport event held annually. This race was inaugurated in 1907. The Isle of Man TT for many years has been the most prestigious motorcycle race in the world. For two weeks every year, the Island welcomes bikers and fans from all around the world for the famous TT races.