I thoroughly enjoyed myself. Train and station are cardboard. Easy to tear off tabs. Too easy. Buildings are a thin foam. Fun to do. Interiors were a bit difficult. Lots of pieces in a small space. I needed scissors to trim tabs if they were hard to get in position. A ruler with a sharp edge for bending longer pieces. Some tape, unfortunately. I highly recommend a very small flat head screwdriver to punch out the slots. I don’t think the train or station could be rebuilt but the stores probably could be. Loved working on them. The details inside the stores is fantastic. Beloved characters and realistic scenery. The box doesn’t show the inside of the buildings but it should. The interiors are a selling point all of its own.