Took the first step towards building my shop

[Toolmaker51]

Long ago, I recall stories of men building boats in their basement. Only later did chink in the plans appear; without means to extricate said project from under their house.
This is different, no-one recollects any bus on a shelf....

But it's one hell of a dual glazed set of windows! Terrific indirect and glare free lighting too. Or charge admission for tourists to see a real American shop in operation.
Last one not so unusual, I toured a woodworking furniture factory quite like that. It occupies a big abandoned but renovated church. The vaulted ceiling makes room for an elevated walkway, a balcony to see operations in their entirety.