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3. The former rail platform of a warehouse on the property that was built for the Groover Stewart Drug Company in 1910. For several years, it was occupied by Ballard & Ballard Company. Ballard & Ballard was at one time, the largest flour production company on Earth. The company was later acquired by Pillsbury in the early 1950s.

4. Before the 1920s, the majority of large American industrial structures were designed to contain multiple floors, which was a characteristic of textile mill construction. In 1903, Detroit architect Albert Kahn developed a new style of construction where reinforced concrete replaced wood in factory walls, roofs, and supports. Detroit’s Packard Motor Car Company’s factory was the first industrial building in the United States constructed with reinforced concrete. This gave better fire protection and allowed large volumes of unobstructed interior. Soon companies like Turner Construction followed suit with projects of their own, like Jacksonville’s Union Terminal Warehouse Company Building.

5. The Union Terminal Warehouse Company’s multi-leg, rooftop, cone-shaped water tower is another historic relic of this site. Rooftop water tanks came into widespread use in the late 1800s in cities like New York City, because their water mains were unable to keep up with the requirements of ever-taller buildings. As building height increases, the vertical height of its plumbing also increases. Instead, the plumbing at various levels of the building are often sequestered, with pressure supplied from a rooftop water tower instead of the municipal supply.

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7. There are 11 “throwback” freight elevators in the Union Terminal Warehouse Company building.

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10. Inside a stairwell corridor

11. Inside the east “subway” in the Union Terminal Warehouse Company’s basement.

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