Google Maps

 Two modes. Simple embed needs no API key: enter an address or coordinates, set the zoom, map type and height, and you have a map. Maps JavaScript API mode takes a browser key and adds custom markers with their own info windows, colours and icons, plus six style themes including silver, dark, night blue, retro and minimal without point-of-interest labels. Either way you can overlay a card with a title, text and a Get directions button, positioned left, right or below the map, switch off scroll-wheel zoom, and require a click before the map activates so it never hijacks a scroll.