15th Annual Smithsonian Magazine Photo Contest Travel
The entry to and exit from the mysteries of the underground.
These stairs will lead you down into the underground system or release you from the adventures you have had there.
Photo Detail
| Date Taken: | 09.2017 |
| Date Uploaded: | 11.2017 |
| Photo Location: | San Francisco, California, United States of America |
| Camera: | iPhone 6 |
| Copyright: | © Michael Hare |