wikipedia

when was the empire state building built?---> one of the seven wonders of the modern world---> i need to know what the other six are---> channel tunnel---> how did they build the channel tunnel?---> construction---> i'm bored---> what were the other wonders of the modern world?---> CN Tower---> bored---> golden gate bridge---> bored---> itaipu damn---> hmmm.---> bored---->delta works---> cool---> i think bastian told me about this one time and i didn't pay attention.--->bored.---> the panama canal--->oh.--->bored.--->when was the empire state building built?