In Berlin, look for the mysterious line along the footpaths

A straight line traces its way along the footpaths of a trendy neighbourhood in Berlin. — COMAN HAMILTON/dpa

It's always worth looking at what’s under your feet in the city of Berlin in Germany. The cobblestone pavements here are studded with memorials.

So-called Stolpersteine (“stumbling stones”) are brass-plated cobbles that bear the names of those murdered and persecuted by Nazis and are typically found near the entrance to the apartment block where the person once lived.