Wawel (10 km) - this hill, in the heart of Krakow's Old Town, is home to the Royal Castle and a stunning cathedral with over 1000 years of history. Beware, however, of the Wawel Dragon, believed by many to live under this hill.
Wieliczka (about 20 km) - notables as varied as Nicolaus Copernicus and Bill Clinton have visited the ancient salt mine under this town which is now a UNESCO world heritage site.