Wimbledon is played in London, England.
All the big tennis players have plated at Wimbledon.
Wimbledon is played on grass.
The Championships, Wimbledon are played at the All England Club in the suburb of Wimbledon (Greater London). It is the oldest tennis tournament in the world, dating to 1877.
Yes, the Wimbledon is a tennis tournament that is very old. They have stadiums built specifically for playing tennis. So no, nothing other than tennis happens at the Wimbledon.
Grass tennis is tennis which is played on grass. A famous grass tennis arena is the Wimbledon.