I'll start right off the bat with Berlin...
Before people ever reached the wall, they first had to contend with rows of coiled barbed wire. Powerful search lights swept over the entire area, even lighting up the west side of the wall. The gap between the two walls, which was 30 to 100 yards (27 to 91 m) wide, created a no-man's land that was patrolled by tanks and soldiers. Guards marched and military vehicles drove up and down a concrete road in the "death strip," which allowed them to respond quickly to any escape attempts. To improve visibility for the guards, sand or gravel was kept neatly raked to show footprints and the wall was painted white. On the western side, West Germans could walk right up to the wall itself, and they decorated it with graffiti.
How the Berlin Wall Worked
Then maybe we can join Trump World in mythological wonderment of walls..but even there, lays a trap. Probably put there by Deep State provocateurs?
In Greek mythology, the
walls of Troy? I hear there is a Gofundme page starting up to fund a 'yuge' great big beautiful horse, to go through the big beautiful gate, that Trump will put in his great big beautiful wall.