Then and Now: Exposition Hall

Then & Now: Dayton's 'Round House' has served the community for 142 years

The Exposition Hall at the Montgomery County Fairgrounds was built in 1874.

The octagonal structure, often referred to as the “Round House,” is two stories tall and has a diameter of approximately 150 feet. It was one of the original buildings constructed at the site.

This view of the fairgrounds is the subject of this week's update to the popular Then & Now photo feature, which explores past and present views of notable Dayton locations.

>>> THEN & NOW: Looking back in Dayton

The then-newly organized Fair Association voted in 1874 to hold its first annual exhibition that fall, according to research done by the City of Dayton for a National Register of Historic Places registration form.

On display in the Exhibition Hall the first year were “household appliances, including heating and cooking stoves and grates, furniture, pianos and organs, sewing machines and jewelry,” reported the Sept. 22, 1874 edition of the Herald Empire.

Today the building remains an iconic landmark in the city.

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