Translation of illegality in Spanish

We bought some sandals which cost us two dollars each pair. Then we visited the surroundings of the market where many store sold paintings, sculptures and books, some very beautiful ones.
I wish you would help me to improve my Spanish. I am studying law in Germany and I am trying to learn Spanish. I hope you can help me and I could help you to learn German. Have a great day.
We had decided to fly to Lima (instead of Buenos Aires, Argentina) and to visit Machu Picchu just a few weeks before leaving Europe.