It was surrounded by a high wall topped with spiralled razor wire.
Other guards opened fire on the refugee, who had by this time reached the last wall, topped with barbed wire.
This was surrounded by a high wall topped with railings.
The ledge was some four feet deep; behind it was a wall topped by a rail.
It is surrounded by high walls topped with barbed wire.
Behind a high concrete wall topped by razor wire, he lives a jock's dream life.
The ground level has thicker walls, topped by a timber floor.
The cliff itself has been built up into a wall nearly a hundred feet high, topped with guard towers.
The cavaquinhos are like two walls topped by a ceiling.
The windows of the room looked out on a wet garden with a wall topped by an iron fence.
