One of the most visited castles in the Czech lands, this stronghold of Holy Roman Emperor Charles IV, was erected in 1348 to safeguard the crown jewels and his vast collection of religious relics. Embedded in the dramatic landscape of the Bohemian Karst, hiking the tiny villages and lush forest surrounding the area, not to mention visiting a rustic pub or two before touring this Gothic stunner, is about as Czech as it gets.