When you complete all the levels, the road leading to the Wonder Palace will open.
In the Wonder Palace, you can replay game boards selected from levels (Floors) you have previously completed.
The Wonder Palace will be open until new levels are added.
When new levels are added, the Wonder Palace will close, and you will have to complete all levels to access it again.
The Wonder Palace has its own special ranking events, and you can earn rewards from your ranking depending on the number of floors you have completed.
Rewards will be given at the next Wonder Palace event.