Grotto. noun. (1) a cave, especially one with interesting natural features. (2) an imitation cave, especially as an ornamental shelter in a formal garden on a hill.


My apologies for the long delay in updating this.
Piecing together various stories, this was built in the 1920’s by the orphans and nuns who called the Guardian Angel Orphanage home. It is located at the end of Heading Ave in West Peoria which continues to operate as a small orphanage under the oversight of Peoria Catholic Charities. To find the grotto, park on the right-hand side of the parking lot just as you enter through the gates and head down the steep hill to the north. Be careful, it’s a steep grade, but completely worth the effort. As my fellow adventurer mentioned, the coolest thing about this place is that no-one knows it’s here and you can’t see it from any road. When viewing it up close, one wonders how they pulled this off.
My personal thanks to commenters ImaSwede who originally took me here and to Josh Harris for joining me in a return visit. This easily made my top 10 “Peoria: off the beaten path.”