Crown City is an anime exclusive location that appeared in Zoroark: Master of Illusions. Grings Kodai made a powerful business here, seemingly as though he could see the future and it is also the site of the Pokémon Baccer World Cup.
Crown City is fairly large, with an advanced section near the city limits, but a section in the middle of the city, called the "old town", is cut off from the rest of the city by a body of water, it has old style houses with trees and wild Pokémon spread throughout it. The old section also has many waterways going through it.
20 Years ago, a disaster caused all of the greenery to die off and made the Celebi that was know to visit often leave. With the help of Pokémon, the people living in the city worked to regrow the flowers and trees. Although they succeeded in restoring the greenery, Celebi did not return until Ash and his friends just happened to be visiting the city for the Pokémon Baccer World Cup.
The guardian protectors of the city are shiny versions of the legendary beasts and are said to only appear when the city is threatened.