A completely random find, based on my previous entry: Japanese Laundromat Series. Different laundromats, all with the same floorplan:
Laundromat 1
Laundromat 2
Laundromat 3
Laundromat 4
Laundromat 5
Laundromat 6
Laundromat 7
Warning: takes a lot of bandwidth. If the live feeds are too slow to load, here are some assorted screencaptures I grabbed.
Unsecured webcams all over the net. Give it a try; fascinating, strange, scary.