The construction of Fort Knox, near the mouth of the Penobscot River in Maine, began in 1844 and took twenty-five years to complete. It was built to repel a feared British invasion that never came. In many ways, it was the 19th century equivalent of an anti-ballistic missile base.
| Canon EOS DIGITAL REBEL XT | |
| Focal Length: | 10 mm |
| Aperture: | f/7.1 |
| Exposure: | 1/400 sec |
| ISO Speed: | 100 |
Categories: [in the country] [roadside attractions]
Tags: architecture artifacts history walls