This is the main square of České Budějovice where Jonáš is from - make sure you get to see what the biggest South Bohemian town is all about and have a taste of their original Budweiser beer (or known as Budějovický Budvar here).
Hluboká Castle is a historic chateau located about 11km north of České Budějovice city centre. If you have a car, it is an easy 15 min drive; otherwise there is a bus or train that takes you straight there. Or you can make a nice day trip by taking one of those rental bikes from the city and ride along the river in less than an hour!
The Prague Astronomical Clock or Pražský orloj is a medieval astronomical clock attached to the Old Town Hall in Prague, installed in 1410 making it the third-oldest astronomical clock in the world and the oldest clock still in operation.