geeking out big time, military history, architecture
Star forts!
https://en.wikipedia.org/wiki/Bastion_fort
These came up at work today as I was researching a famous one in Japan. (https://goo.gl/maps/vBxRhfqkJ4bFSu1fA)
Basically, I just love anything that has a huge specialty vocabulary, and I could nerd out over all the little spokes and spikes and moats and outcroppings of these things for hours. Plus, as military bases go, they're real pretty.
Man, I wish Mid-City in NOLA had a ravelin. =(^).(^)= (https://en.wikipedia.org/wiki/Ravelin)
re: geeking out big time, military history, architecture
@Leucrotta Yeah, he did get mentioned in the Wiki article for Goryokaku!