<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Markers, circles and polygons</title>
<link href="https://tiles.locationiq.com/v3/libs/leaflet/1.8.0/leaflet.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="https://tiles.locationiq.com/v3/libs/leaflet/1.8.0/leaflet.js"></script>
<script type="text/javascript" src="https://tiles.locationiq.com/v3/js/liq-styles-ctrl-leaflet.js?v=0.1.8"></script>
<style type="text/css">
            body {
                margin: 0;
            }
            #map {
                width: 100vw;
                height: 100vh;
            }
        </style>
</head>
<body>
<div id="map"></div>
<script type="text/javascript">
            // Maps access token goes here
            var key = 'pk.aa7f5d0539c5675b7f3429402939d8fa';

            // Add layers that we need to the map
            var streets = L.tileLayer.Unwired({key: key, scheme: "streets"});

            // Initialize the map
            var map = L.map('map', {
                center: [39.73, -104.99], // Map loads with this location as center
                zoom: 14,
                scrollWheelZoom: false,
                layers: [streets]         // Show 'streets' by default
            });

            // Add the 'scale' control
            L.control.scale().addTo(map);

            // Add the 'layers' control
            L.control.layers({
                "Streets": streets
            }).addTo(map);

            // Add a 'marker'
            var marker = L.marker([39.73, -104.984]).addTo(map);

            // Add a 'circle'
            var circle = L.circle([39.73, -104.997], {
                color: 'red',
                fillColor: '#f03',
                fillOpacity: 0.5,
                radius: 500
            }).addTo(map);

            // Add a 'polygon'
            var polygon = L.polygon([
                [39.726, -104.980],
                [39.734, -104.982],
                [39.739, -104.971]
            ]).addTo(map);

        </script>
</body>
</html>