urban geode
A space in a city that has been closed off, boarded up, sectioned off, from use. This may or may not be the result of changing fire and zoning codes in the mid-twentieth century. Often times furnishings and finish materials are left in tact.
The space above the restaurant used to be apartments, but the restaurant removed the staircase to make more room so the space above cannot be accessed. It is now an urban geode.