C++ Class that can handle huge amounts of objects?

In my current project, I need to have a massive number of objects render on the srccen at once, up to about 80,000. MOST of the objects will be square, but, of course, special objects will be non-square, but will fit into the square grid, and have a square collision mesh. I want to write a class (C++) for an object that can have many objects randered. They are static, they will not have animations. They do need collision, but thats not hard, for squares I mean. I need to be able to specify a model. So, how can I create a class for such a task? To keep performance up, it needs to have almost all the features of a statis shape removed except for collision.