The Agra Fort is a huge fort very similar to the Red fort in delhi. To be honnest, i'm not able to distinguish either one if i had two pictures in front of me. But, contrary to the red fort, i visited this one. 

It's quiet interesting but not so much beautiful compared to all the indian monuments they can build. I mean it's not the best souvenir i had in India. However, the size of the red stones are impressive. And it's rare i guess: you can see another WHS from this WHS! It's obviously the famous Taj Mahal, along the Yamuna river. We could start a thread on the forum about such possibility: to see a WHS from another one? :) (maybe it already exists, i didn't verify)