I know we have more than a few history buffs, so thought I'd post this...

I was down in Destin for vacation and took the kids over to Pensacola for the day to see the Air Museum and Fort Barrancas which is an old Spanish Water Battery that was enhanced by America by adding a larger fort. Part of the addition included a Redoubt located about 1/2 mile from the main fort. I've only ever read about these but have never seen one on any other similar forts on the East coast.

Is anyone aware of any other forts in the US with a Redoubt? According to the literature, the use of redoubts was a common defense in the 1800's so I was a bit curious why I've not seen this before.