Small Souvenir Buildings

Previously, I've written about small building including microscopic architecture and buildings which were literally on the head of a pin. However, what are some small, yet practical souvenir buildings to include in your collection? I've seen an Ellis Island Building on top of thimble. The makers mark is W.A.P.W. and was produced in the U. K. There are some very small Empire State Buildings and Statue of Liberty metal replicas I found many years ago in N.Y.C. These are only the size of a penny. Even smaller are charm bracelet charms have also become a popular collectable for souvenir building buyers. Do you collect smaller souvenir building replicas or do you only buy larger sizes? Do you collect replicas which are to scale of the real structure?