Suggestion: What type of attractions are there in your city?
Your use of the word there is correct in your example, just keep in mind the following
There - represents something physical like "There is a shop on the corner"
They're - used in place of "they are" - " They're visiting this weekend"
Their - represents the possession followed by noun - "Their food is amazing"
And for a full sentence with all 3 words - "This is their car, they're going to Spain for three weeks, I heard the weather is amazing there."
Hope this helps :)