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diff --git a/images/thumbs/tupperware.jpg b/images/thumbs/tupperware.jpg
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diff --git a/map.html b/map.html
index b9d6de5..d7dec41 100644
--- a/map.html
+++ b/map.html
@@ -56,12 +56,89 @@
         #popupcontainer .leaflet-popup-content {
             width: initial;
         }
+
+        /* BEGIN lightbox */
+
+        /* simplified from https://jekyllcodex.org/without-plugin/lightbox/ */
+        #lightbox {
+            width: 100%;
+            height: 100%;
+            position: fixed;
+            top: 0;
+            left: 0;
+            background: rgba(0,0,0,0.85);
+            z-index: 9999999;
+            line-height: 0;
+            cursor: pointer;
+            display: none;
+        }
+        #lightbox .img {
+            position: relative;
+            top: 50%;
+            left: 50%;
+            transform: translate(-50%,-50%);
+            max-width: 100%;
+            max-height: 100%;
+        }
+        #lightbox .img img {
+            opacity: 0;
+            pointer-events: none;
+            width: auto;
+        }
+        @media screen and (min-width: 1200px) {
+            #lightbox .img {
+                max-width: 1200px;
+            }
+        }
+        @media screen and (min-height: 1200px) {
+            #lightbox .img {
+                max-height: 1200px;
+            }
+        }
+        #lightbox #close {
+            height: 50px;
+            width: 50px;
+            position: fixed;
+            cursor: pointer;
+            text-decoration: none;
+            z-index: 99;
+            right: 0;
+            top: 0;
+        }
+        #lightbox #close:after, #lightbox #close:before {
+            position: absolute;
+            margin-top: 22px;
+            margin-left: 14px;
+            content: "";
+            height: 3px;
+            background: white;
+            width: 23px;
+            transform-origin: 50% 50%;
+            transform: rotate(-45deg);
+        }
+        #lightbox #close:after {
+            transform: rotate(45deg);
+        }
+        #lightbox, #lightbox * {
+            user-select: none;
+        }
+        /* END lightbox */
     </style>
 </head>
 <body>
     <div id="map"></div>
     <div id="popupcontainer" class="leaflet-container"></div>
+    <div id="lightbox" onclick="this.style.display = 'none';"></div>
     <script>
+        function displayLightboxOnClick(target, event) {
+            event.preventDefault();
+            document.getElementById('lightbox').innerHTML = `
+                <a id="close"></a>
+                <div class="img" style="background: url('${target.getAttribute('href')}') center center / contain no-repeat;">
+                    <img src="${target.getAttribute('href')}">
+                </div>`;
+            document.getElementById('lightbox').style.display = 'block';
+        }
         (async function() {
             const map = L.map('map', {
                 minZoom: 12,
@@ -134,7 +211,7 @@
                     attributesString += '</dl>';
                     popupContentWrapper.innerHTML = `
                         <h2>${stand.name}</h2>
-                        <img style="width: min(80vw, 300px);" src="images/${stand.image}">
+                        <a href="images/${stand.image}" onclick="displayLightboxOnClick(this, event)"><img style="width: min(80vw, 300px);" src="images/thumbs/${stand.image}"></a>
                         ${attributesString}
                     `;
                     let popupOptions = {};