In the 1940s, motorists crossing the 3rd Avenue Bridge from downtown Minneapolis were greeted by one of the most remarkable advertising signs ever created in the Twin Cities.
Mounted on the sides of a 240-foot tower, the short-lived sign touted Coca-Cola in a very big way.
It featured neon-lit, 54-foot bottles of the popular beverage beneath the word "Coca-Cola" in 16-foot script lettering. Like the classic Grain Belt Beer sign that now adorns Nicollet Island, the soda pop sign was hard to miss.
How the sign ended up where it did is a story that goes back to 1886, when Minneapolis civic leaders — eager to display the wonders of their burgeoning city — built an enormous hall called the Industrial Exposition Building along the west side of Central Avenue at SE. Main Street. Completed in a mere three months, the hall replaced another prominent building — the five-story Winslow House Hotel (1857), an imposing hunk of limestone that had offered guests fine views of St. Anthony Falls.

The exposition building hall served as the scene of annual expositions through 1890, when a Viennese tunesmith by the name of Johann Strauss waltzed in for an orchestral performance. Two years later, it hosted the Republican National Convention, which in true Minnesota fashion nominated a presidential candidate (Benjamin Harrison) who lost the election.
After the convention, the building received only sporadic use until 1903, when it was purchased by Marion Savage, an entrepreneur best known as the owner of the legendary pacer Dan Patch. Savage transformed the building into a warehouse for his stock-food company, equipping young clerks with roller skates to fill orders in the cavernous space.
By 1940, however, both Savage and his business were defunct, and the local Coca-Cola bottling company purchased the vacant structure, then tore most of it down with the intent of constructing a new plant on the site.
But those plans were soon shelved by the nation's entry into World War II. In the meantime, one portion of the Exposition Building — its lookout tower — still stood. The bottlers decided to turn it into a huge signboard for their product.