What do you get when three Israelis, two Iranians and a German walk into a room? A Berlin-based world music ensemble known as Sistanagila, named after an Iranian province — Sistan and Baluchestan — and the popular Jewish folk song "Hava Nagila." Courtesy of Sistanagila hide caption

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People wait in line to cross the border from East to West Berlin one day after the collapse of the Berlin Wall at Friedriechstrasse railway station in Berlin, Germany, on Nov. 10, 1989. The station, known as the Palace of Tears, is now a museum. Michael Richter/DPA/Corbis hide caption

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The Berlin Wall fell on Nov. 9, 1989, 25 years ago this weekend. East Germans flooded into West Berlin after border guard Harald Jaeger ignored orders and opened the gate for the huge, unruly crowd. Alain Nogues/Sygma/Corbis hide caption

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The entrance to the former concentration camp in Dachau, Germany, bears the Nazi slogan "Work Makes You Free." The gate was stolen over the weekend. Johannes Simon/Bongarts/Getty Images hide caption

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The broadcast tower at Alexanderplatz looms over the city center. A crossing point of tourists, commuters, shoppers, lovers, artists and bums, Alexanderplatz was rebuilt by the communist authorities of former East Germany in the 1960s. Today, it's a popular gathering place in the reunified city. Sean Gallup/Getty Images hide caption

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Germany is the world's third-largest exporter of arms, like this bazooka destined for northern Iraq, being packed up at a German military base on Thursday. The country's economy minister has held up hundreds of weapons exports since he took office in December, angering many in the defense industry. Carsten Koall/Getty Images hide caption

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People with Israeli flags and banners attend a rally against anti-Semitism near the Brandenburg Gate in Berlin on Sunday. Markus Schreiber/AP hide caption

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A man walks past burnt vehicles near a railway station after recent shelling in Donetsk, eastern Ukraine, Aug. 29. Maxim Shemetov/Reuters/Landov hide caption

itoggle caption Maxim Shemetov/Reuters/Landov