Translation of Wahrzeichen

A bystander who watched the entire scene all the time decided to help me. He was an older man, around seventy, but nonetheless he went to the oldest of these kids and slapped him. The boy was sixteen.
He advised against traveling in this region at night as they were many violent robberies and one should return before dusk. He told me that he himself got robbed about two months earlier just here.
On the second day we visited the Perito Moreno glacier by foot. It is one of the most beautiful glacier in South America and certainly the most visited, as it can be reached easily by car.