We also learned from other people's travel notes that this place is located in the most central part of the old city of Prague, belonging to a relatively small number of attractions, but the door is not very conspicuous, we need to look carefully to find it. Two front photos were put for your reference. The only thing here is to take photos of the stairs of the cannons. Remember Jiangsu, the photos must be taken from the bottom to the top. It's easy to get the bulb effect by adjusting the light to the characters.