I was in Gettysburg for a work assignment - to be trained as a Lead Auditor for nuclear suppliers. Gettysburg is very historic, and touristy. One can take a photo of your holiday at Gettysburg, and see a similar photo in someone else's collection (to some extent). However, I came across something I believe only a photographer would wake up and smell the coffee or roses for. That would be the Actual equipment and process used to create photos during the Civil War period.
There is a lot to take in when walking around Gettysburg. There are several Arsenal stores to purchase reproduction guns, canteens, and the like. There are a lot of places to eat, souvenir stores, book stores, and craft stores. There are even plenty of photography studios for a town this size. Tourism is what drives this town. However this one small shop, competing against every other shop in town for business, was quite unique in my opinion.
The photographer needs to evenly coat the glass plate with some collodion solution. Nasty stuff to some extent, when handled incorrectly.