The uniqueness of the Prague Castle is that it is the largest and oldest castle in the world. It is also called "city in the city" because of its huge proportions: length more than 500 meters, width more than 100.
Once the castle was the residence of Czech kings. Currently, it is the residence of the President of the Czech Republic and an active tourist attraction. Visit the "city in the city" is completely free, but to inspect some of the attractions located on the territory of Prague Castle you will need to purchase a ticket.
Hi Jul! Thank you so much for your continuous contribution. Have a great evening. Tomas