Why was the 1893 World’s Columbian Exposition called the White City?

The 1893 World’s Columbian Exposition was nicknamed the "White City" primarily due to the appearance of its grand Neoclassical buildings.1

Under the leadership of Daniel Burnham, the fair’s structures were designed with impressive, uniform Classical facades that featured a consistent cornice height of 60 feet. These buildings were finished in white plaster, creating a cohesive and striking visual effect that left a lasting impression on millions of visitors. This aesthetic, which was further enhanced by electric lighting at night, served as a centerpiece for the fair and became a major inspiration for the City Beautiful movement.21