Cesky Krumlov: The full name of the fairytale town of CK CK is Krumlov because of its full name Cesky Krumlov, abbreviated as CK here is known as "the most beautiful small in the world" The town was listed as a World Heritage of Nature and Culture by UNESCO in 1992. There are currently only 14100 residents. The Czech mother's river Vltava flows through the town, circling two "S" shapes in the center, envelging Krumlov in his arms, creating the illusion of a "horse-shaped" peninsula.