3 Must-See Hop-off AttractionsWhilst travelling around Prague, you have to visit the Old Town Square, the heart and soul of this marvellous city. Here you can get a feel for it's heritage and appreciate the Gothic Church of Our Lady before Týn and the Prague Orloj by the Old Town Hall. Prague Castle is a must-see destination too. Hop-off at Bus Stop 4 to visit the largest castle in the world. At Bus Stop 7, you'll find Kampa Island, an idyllic neighbour where you can take in the view of the waters, the surrounding big trees and the colour buildings.