Hello how may I help you? help me with world records yes, I can help you with world records. what is the longest thing in the world? sorry, your request is too vague, could you give me a more specific request? sure. what is the longest river? the longest river is amazon river with 4345 miles. and the longest banana? the longest banana split measured 7320m ans was made by the residents of selingrove, pennsylvania, usa wow amazing! thank you. do you have another request? no