This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Allegheny Observatory Observatory Hill Pittsburgh . en The Allegheny Observatory in Pittsburgh which gives its name to the Observatory Hill neighborhood own Cbaile other versions cczero Allegheny Observatory Uploaded with
Page 2023 Free-images.com. All images are Public Domain