As you start typing a search query, it will attempt to autocomplete the query for you, based upon the area visible in the map viewport.  For example, a search for "123 Main" would look for "123 Main St" in the city visible on the map, not random cities across the globe.

You will see two different types of autocompletes:

• a single place, represented as a marker
• a broad search,  represented as a magnifying glass

Search results placed on the map are also biased toward the area visible in the map viewport.  For example, a search for "gas stations" would plot the gas stations available in the visible area on the map, not random gas stations all over the world.

During a single place search, only the location of that name is shown on the map. These locations are represented by an icon based on the type of location searched for. For example, a restaurant will place an icon of a fork and knife on the map.

During a broad search, up to 200 search results are returned that Google determines are most relevant.  These markers are represented by a square. This would be equivalent to the top 200 locations returned in a regular Google search query in a browser.