Masterpiece Models of the USA is a maker of incredibly detailed and amazingly accurate resin and multimedia model kits of dinosaur fossils, military subjects, science fiction subjects, and real space subjects. They also have a line of great diorama bases, too! Be sure to check out the entire line of excellent kits.

This is a highly detailed resin kit to build a collapsed bridge diorama base, as shown here. JS-2 tank not included (linked below).