The Marathon County Fairgrounds are located in Wausau, Wisconsin.

In 1980, the site was added to the National Register of Historic Places.

[1][2] The county fair, now known as the Wisconsin Valley Fair, has been held at the site since 1868.

[3] It features a stock judging pavilion (pictured) that was designed by Alexander C. Eschweiler and built in 1921.

[1] Other features on the site include a carousel, a kids' train, a curling club and campgrounds.