Tickets are valid for one year and can be used on three dates, which is very convenient for tourists. Although a plan is booked, there are also opportunities for changes, so the validity of the ticket for one year is very good. Tickets for the other three places are used separately, and they are divided into three times, which allows tourists to visit very freely and easily. You can visit the Palace of Beauty, Hofburg Palace and Treasures in separate leisurely visits during the days they allow to play. The beautiful palace visits the periphery, no tickets are required, only tickets need to be shown when entering the inside. Tickets are QR codes, so every time you visit at one point, as long as you show the QR code on the machine, you can enter directly. I think the most worth visiting is the treasure house, you can enjoy the things of different times, feel the things of Princess Sissi at that time, it is a good tour point. I hope that countries can provide packages like this flexible use, so that tourists can more comfortable to visit the local area, travel off-peak, and feel more different landscapes.