Visit the Musée D'Orsay, which is housed in a former railway station. It features mainly French art from 1848-1915, and is best known for its impressionist masterpieces by Monet, Degas, Renoir, and Cezanne.

Join a professional, licensed tour guide as you discover one of the most historical cities in Germany. Although nothing remains of the mortar and cement-block barrier between East and West Berlin, the Berlin Wall (built in 1961; destroyed in 1989) is still a main “site” in Berlin. View the well-known Brandenburg Gate, once a main gate hidden behind a 10-foot barrier and now known for celebratory dancing on its flat top during the reunification. Travel to the Checkpoint Charlie Museum, the most famous border crossing point. Checkpoint Charlie, once a wooden guard hut, was the most (in)famous border-crossing point between East and West Berlin from 1961 to 1989. All that remains of the checkpoint itself is a skeletal watchtower and a memorial of attempted escapees. Follow your guide as they lead you through the museum’s accounts of the most ingenious of these escape attempts— even a few by hot air balloon.

The Topography of Terror in Berlin is a museum and historical site that chronicles the crimes of the Nazi regime, particularly those committed by the Gestapo, SS, and Reich Security Main Office. It offers exhibitions, educational programs, and includes historical remnants like a section of the Berlin Wall to provide a thorough understanding of this period.

Visit Sachsenhausen, one of the major Nazi concentration camps in Germany. Most of its prisoners arrived after the Crystal Night pogroms, when Nazis arrested over 30,000 Jews over the course of just a few days. From its construction in 1936 until its liberation by the Soviet army in 1945, this camp held more than 200,000 prisoners. The site now holds a museum, memorial hall, and cinema, which screens a film depicting the camp’s history.

Located on the line that once separated East and West Germany, this stirring museum was built in the shape of a warped Star of David and focuses on the realities of Jewish life in Germany, from ancient times up to the horrors of the Holocaust.

Seen as Germany’s “Little Hollywood” from 1921 through WWII, Potsdam was the dazzling city of Frederick the Great, with countless marble fountains, exotic pavilions and Baroque castles (mostly built in the name of Frederick and Prussia’s power). Among the parks are testaments of Frederick’s eclectic and sometimes odd tastes such as the parasol-toting Buddha on the roof of the Chinesisches Teehaus pavilion, Frederick’s “guest house.”

Visit the Neues Palais, ordered by Frederick the Great, including the Palace, the Grotto, and the Theater.