Translation of precocious in German

After breakfast we visited one of the largest markets in the country. It was very close to the hotel and we were tempted to buy souvernirs and other stuff that we would never use ever again.
I understand that you use the article 'die' when talking about a feminine object, das when the subject is neutral, and der when talking about a masculine object. But how can you remember all these?
We overflew beautiful, huge mountain ranges (Andes) just before landing in Cusco. The small domestic airport of Cusco immediately gives you the feeling that you arrived at the right place.