Some of the Fire Tower crew examining connection details atop a 170' man lift. Notice the Mustang convertible included for a sense of scale.
A WWII blimp hangar is the definition of big. 157' high, 234.5' arch clear span, 1000' long building. (i.e. the roof covers 7 acres and uses 2.7e6 BF of wood)
Nothing quite as exciting as seeing a freshly repaired covered bridge flying back over the abutments to its new (old) home.
Iconic round barns are harder and harder to find on the Midwestern landscape. This one was taken down, restored, and put back up on a county fairground.