Câlnic village is known for its castle, which is on UNESCO's list of World Heritage Sites.
Built as a noble's residence, it was bought in 1430 by local peasants and fortified.
The castle differs from most other constructions of this type in that it is not situated on a hilltop but rather in a depression, much lower than the surrounding hills.
This position, clearly inconvenient in case of a siege, can be explained by the castle's first function as a residence, not meant as a defensive construction.
Liviu Stoica, Gheorghe Stoica, Gabriela Popa - Castles & fortresses in Transylvania: Alba County / Castele și cetăți din Transilvania: Județul Alba, Cluj-Napoca, 2009, ISBN 978-973-0-06141-3