Google Maps directions link icon
You could create a custom region in your theme, then include a block with unaltered text that directly makes a call to the Google Maps API. This allows you the most flexibility since you work directly with the API - however this is only practical with a static location. If you are using something like a geo location module to assign destination parameters or other, you will need to adjust this.

EDIT:

in hindsight, depending on your needs, you probably don't need to create a dedicated region in your theme.

To create an unaltered text area (D7):

1) goto admin/config/content/formats

2) 'add text format'

3) Name: unaltered, Roles: Administrator ONLY! - giving others access to this has MAJOR security issues, so make sure it is admin only.

4) Save, and move it to the bottom of the list, Save Changes (this makes sure it's not the default

Get the google maps API address:

1) go here: https://developers.google.com/maps/web/

2) setup a google developer account (all google api's require this - its free).

3) goto Google Maps Embed API on that page

4) read the page, and setup your api call as you want.

5) copy the code

In admin/structure/blocks:

1) 'Add block'

2) title: &lt; none > (with spaces removed) or as desired

3) Body: paste code from google API - adjust the dimensions as desired (width and height as given by the API call)

4) Text format: unaltered

5) save

6) put the block in the appropriate region