From the World Heritage inscription:
Holašovice is an exceptionally complete and well-preserved example of a traditional central European village. It has a large number of outstanding 18th- and 19th-century vernacular buildings in a style known as South Bohemian Folk Baroque, and preserves a ground plan dating from the Middle Ages.
I have no idea why this is a World Heritage site. The site itself is extremely small and I’m not sure why examples of South Bohemian villages are of world importance and I’m not sure why this village is such a great example. This is one of the handful of World Heritage sites which I think should never have been listed and if they ever do a clean up of the list, it should be one of the first ones removed.
If you choose to visit, your entire visit can probably be crammed into 10-15 minutes.
View the complete list of UNESCO World Heritage sites I have visited.