The Making of the Berlin Wall

Construction of the Berlin Wall started on August 13, 1961, which fell twenty years ago and was anywhere from 20 to 100 feet some places.

The wall had a lot of security. It had a watchtower, and everything from spike mats and vehicle ditches to, to tank traps.

This graphic from The New York Times show that the Berlin Wall was no regular wall.

Below are some close-ups that I found interesting.