Want to find all of the experiences in a certain area? There are a few ways:
Search in map area
If you find the area on the Morty map you can tap Search in this area to find nearby experiences.
Be sure to clear out any text searches that you don't explicitly want to search for, they will limit the results you see.
You can enter the name of a city to filter your results.
Text based searching is still primitive, but you can enter the names of cities and Morty does a pretty good job surfacing the experiences in that location.
This combined with moving the map and searching by map area can be very effective.