The city overestimated the crowds .
The city built a stadium for 35,000 , but it never filled up -- the sports competitions became a sideshow of the World 's Fair , also held in St. Louis that summer .
The city overestimated the crowds and built a stadium for 35,000 , but it never filled up -- the sports competitions became a sideshow of the World 's Fair , also held in St. Louis that summer .