Today’s main objective is the Soviet war memorial in Treptower Park in southeast Berlin. The southeast, especially the Friedrichshain and Kreuzberg communities, is typically referred to in guide books and blogs as “gritty.” Immigrant communities — Turks probably are most populous — have grown up here in numbers big enough that one in four Berliners has a recent foreign background. But what some residents call “edginess,” others call “energy.” The area has attracted artists, entrepreneurs and young people, so the heart of Berlin beats a little more quickly here. And the photos below will show that the area has its own beauty, too.