The biggest building in the world was at the 1893 Columbian Exposition
How big was the Manufactures and Liberal Arts Building at the 1893 World’s Fair? The MLAB was the largest building in the world and the largest roofed building that had ever erected at that time. The south front of the Manufactures Building at the 1893 World’s Fair. At 787 feet wide, this is the shorter end of the mammoth structure. [Image from Picturesque World’s Fair (W.B. Conkey, 1894); digitally edited and © worldsfairchicago1893.com.] At 1687 feet long by [...]