If you're into WW-I aviation, I heartily suggest checking out:
The Old Rhinebeck (NY) Aerodrome
I knew Cole Palen when I lived in NY. He was a very colorful, and amazing man!
He doesn't have a Gotha, but does have several from the era, including a tri-wing Fokker that was still flying!
Marc
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Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.