designer the world fairs and fred olmstesd and two of the most brilliant architects, and youd ha the son of the man who was the most brilliant and foremost landscape architect, olmstead. they are two olmstead. they went by the same name. easy to confuse them. gaudens who was near the end of his life was having difficult doing his work but was certainly a part of it. they went to europe and studied all the great cities of europe. i often thought about that researching and thinking. my god, what tabloid would love to get ahold of this story. all these guys going to the great capitols of europe and having a great time. well they really studied very hard. one of the people that they met actually was, they were all in, i think paris, but burnham had to go off to a meeting with james casat. casat, father of mary casat was head of pennsylvania railroad. he doesn't want the railroad war it was. burnham sure didn't want it where it was. what they arranged for a tunnel basically to go under capitol hill to the south and than they would build union station. so the trains were terminate there. and i think i have exhausted all my knowledge of railroads. >> what is the origin of t