Translation of horizon in Spanish

We had three more days and the city which was plenty of time if not even too much. It is true that this city is unique and that you can spend there over a month, but we started to miss the countryside.
It was so packed and it looked like a heap of ants climbing the temple. I would estimate that there were about a thousand people simultaneously climbing the temple which was not very big.
The biggest city in Germany is Berlin. The other big cities are not as big but some of them are really nice. And especially the smaller cities here are very charming and worth visiting.