Part of mall for sale

[Felix Goldstein]

I came across a listing on loopnet where part of a mall was for sale.  its actually the local mall where i live so that listing caught my attention.  One of the anchor tenants(Macy's) recently moved out.  And then i see this listing saying that the former Macy's property for sale. I call the broker he says just the part that was occupied by Macy's is for sale now. How can i buy Part of a mall? that doesn't make any sense to me.  What will they do redraw the parcels?