Poland

The former Nazi German concentration and extermination camp complex near Oświęcim, now preserved as a memorial and museum bearing witness to the genocide of more than one million people murdered here between 1940 and 1945.

The great medieval market square of Kraków, one of Europe's largest and finest, dominated by the Renaissance Cloth Hall and the twin towers of St. Mary's Basilica, at the heart of the city's historic Old Town.

The largest brick building in the world and the most extensive medieval fortress built by the Teutonic Knights, on the banks of the Nogat River in Malbork, northern Poland, now a museum housing one of the world's great amber collections.

The Tatra Mountains, Poland's only alpine range, and Morskie Oko, the largest and most famous glacial lake in the Tatras, set in a dramatic cirque beneath granite peaks at 1395 meters above sea level.

Warsaw's Old Town district, almost entirely destroyed in WWII and rebuilt from ruins using Canaletto paintings and survivor memories, stands as one of the twentieth century's most remarkable acts of urban reconstruction.

The oldest continuously operating salt mine in the world, beneath the town of Wieliczka near Kraków, famous for its underground chapels, chambers, and sculptures carved entirely from salt rock.