Translation of calibre in Spanish

I am from Los Angeles California, i live in Manhattan NYC, i like to photography and art. I am learning English for my work and I should have a study partner in order to learn English a little quicker. Do you agree?
The first thing he wanted to show us was a war memorial for Cambodia's civil war. The war has ended only few years earlier and was still very present in the mind of the entire population.
A band was playing Peruvian music while we were waiting for our luggage. The altitude is immediately felt: Dark blue skies and thin air, which won't let you climb stairs without having to take a few breaks.