JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://openlayers.org/api/OpenLayers.js"></script>
<div id="map" style="width:450px;height:430px;"></div>

JavaScript

var proj_4326 = new OpenLayers.Projection('EPSG:4326');
var proj_900913 = new OpenLayers.Projection('EPSG:900913');
map = new OpenLayers.Map({
    div: "map",
    projection: proj_900913,
    'displayProjection': proj_4326
});

var osm = new OpenLayers.Layer.OSM();
map.addLayer(osm);

var long=-71.054;
var lat=42.358;

var lonlat = new OpenLayers.LonLat(long,lat).transform(map.displayProjection, map.projection);

map.setCenter(lonlat, 15);

var pointLayer = new OpenLayers.Layer.Vector("River");
map.addLayer(pointLayer);

var buildings = [
    {
        name: "Boston Aquarium",
        lonlats: [
            [-71.048501,42.359521],
            [-71.048439,42.359293],
            [-71.0486,42.359277],
            [-71.048541,42.359069],
            [-71.049362,42.358968],
            [-71.050164,42.359261]
        ],
        video:"http://www.youtube.com/embed/HZkauzLKm2c"
    },
    {
        name: "Boston City Hall",
        lonlats: [
            [-71.058465,42.360752],
            [-71.057561,42.360823],
            [-71.057408,42.359965],
            [-71.058326,42.359884]
        ],
        video: "http://www.youtube.com/embed/q5poo1sdNHg"
    } 
];

var style_green = {
    fillColor: "white",
    strokeColor: "green",
    strokeOpacity: 0.7,
    strokeWidth: 6
};

for(i=0;i<=buildings.length-1;i=i+1){
    // inside of this loop - runs for each building
    for(j=0;j<=buildings[i].lonlats.length-1;j=j+1){
        //inside of this loop - runs for each point in each building
        buildings[i].lonlats[j] = new OpenLayers.Geometry.Point(                         buildings[i].lonlats[j][0], buildings[i].lonlats[j][1]);
        //transform projection
        buildings[i].lonlats[j] = buildings[i].lonlats[j].transform(
            map.displayProjection, map.projection);
    }
    // now that we have a list of points, turn the building into a polygon
    // we do this by turning the list of points into a LinearRing
    // and sending that LinearRing to the Polygon
...