Youssef's diary around the world

In 2007, I visited the Moorish Castle in Sintra (Castelo dos Mouros).
I was amazed by the grandeur and majesty of these monuments.
At moment I was at the top of the castle, I was in the process of thought "how such a strong regime could collapse?".
These are lessons of the past.
When injustice reign, sooner or later, the regimes necessarily fall.