13th Annual Smithsonian Magazine Photo Contest Travel
Blow Your Horn, Alcatraz
This is an intriguing sign above and even more intriguing tunnel on Alcatraz.
Photo Detail
| Date Taken: | 11.2013 |
| Date Uploaded: | 11.2015 |
| Photo Location: | San Francisco, California, United States of America |
| Camera: | Canon PowerShot SD850 IS |
| Copyright: | © Samantha Formicola |