Part 3/8:
The construction process involved a huge workforce, as hundreds of laborers worked tirelessly to complete these edifices under tight deadlines. Notably, a remarkable underground subway system—an unprecedented solution to the congested streets of Paris—was also born from the fair's ambitions. This new transit system, which would eventually evolve into one of the densest subways in the world, symbolized a shift in urban movement and provided a vital link to the fair for millions.