Translation of archeological in German

There are very cheap language courses at the stores in Germany, but they aren't all good. At our school we have private clases. 60 min costs 20 Eur and 45 min 15 Eur. If you are interested, I can book it for you.
We decided to walk back and explore the city on foot. It was hard to cross the streets as there was an endless flow of motorcycles and bikes. One needed to just enter the street and cross it.
Although you need at least 2 weeks to visit Peru, it was worth being there for 5 days. It definitely gave us a taste: we will be back for a longer stay.