> which showed a hollow interior (similar to that seen in overhead shots of BCN) That was the original design. The idea was to have a park inside all blocks. B

> which showed a hollow interior (similar to that seen in overhead shots of BCN) That was the original design. The idea was to have a park inside all blocks. But you know... greet happened. This is the result from the original idea to the final state: https://upload.wikimedia.org/wikipedia/commons/1/1c/EvolucioMansanaM3.png https://upload.wikimedia.org/wikipedia/commons/1/1c/Evolucio...