It's Always In The Last Place You Look

Hidden fortress found under Alcatraz

Previously thought to have been destroyed, it turns out that the Civil War era fortress was instead buried under the prison.

From The Detroit Free Press:

A surprising find under what used to be America’s most notorious prison: Texas A&M researchers using ground-penetrating radar have discovered the remains of an old military fortress long believed to have been completely destroyed, reports the BBC.

. . .

The radar has revealed old fortifications along with buried magazine buildings and tunnels dating from long before the main prison building was erected in 1915.

Yet another neat find, and an excavation of the prison's parade ground should turn up some interesting parts of the fortress.

Meanwhile, it looks like another lost fort, Fort Caroline, thought to have been in Florida may instead have been in Georgia all this time.

Some people lose their keys, but it takes a country to lose entire forts....