However, the phrase is incomplete. The phrase "il y a" is followed by a blank space. You need to add a specific element or description to the sentence.
For example, you could say:
* Dans ma ville idéale il y a beaucoup de parcs. (In my ideal city there are many parks.)
* Dans ma ville idéale il y a de la musique partout. (In my ideal city there is music everywhere.)
* Dans ma ville idéale il y a un marché tous les jours. (In my ideal city there is a market every day.)
Please provide the missing part of the sentence so I can give you a more specific translation.