I enjoy looking at old hand-drawn reproductions of cities and environments. Besides admiring the artistic talent required to create the pictures, viewing them is a method of traveling back in time to see what places may have looked like, letting you compare how human "progress" can affect the world around us. We can also gain insight into how people from those times viewed the events happening around them, evidenced by the number of recreations of disasters. These drawings remind us of the risks associated with carving a living from the planet, and can act as a warning that destruction can strike at any time, and sometimes from some unexpected sources.
Who could forget the Chicago Fire?
Or the trampling of Pittsburgh?
These images, and more, are available as prints from Mega Lazors. It's history, only geekier.