This is just a simple powerpoint of places in Seoul from 1969 and 2003. 

You can use it to make passive sentences 'a building has been demolished' or (less likely) active sentences 'they have demolished a building'.  Anyway, this is part of a lesson rather than a full lesson, but sparks interest due to the locations. 

I showed the presentation then gave the students printed versions of the slides with two pictures on each (one scene from 1969 and one of the same place in 2003) in different groups to discuss and make notes on.  If you click on the photos it will take you to the original website, where you can find more pictures and make your own.

Good Luck

Rian