The Dickeyville Grotto is a series of grottos and shrines in Dickeyville, Grant County, Wisconsin, United States. It is located at the intersection of U.S. Highway 151 and U.S. Highway 61. Most of the site's concrete structures are covered in shells, stones, tiles, wood, glass, gems and geodes donated by area parishioners. The site is visited by 40,000 to 60,000 visitors per year.