"Then and Now"
We could show how an area, maybe even one with a landmark as it looks right now and then do a swipe to a the same view around 100 years ago.
For example in San Francisco a view of the Presidio area could be shown, and on the background show the Golden Gate as it is being built. Or in New York we could do a shot of the Battery Park area during the beginning of the 20th century.
It would be so cool, because it would not only help our VFX skills, but help us develop good research abilities.
What do you guys think?