This list will focus on any volcano made lake; Volcano lakes can occur in a few different ways: The first would simply be a crater filled with water.
Another way that these lakes can form is that when a volcano erupts, such large amounts of magma are released that the emptied magma chamber beneath it collapses under the weight of the earth, thus forming a large indentation called a caldera, which eventually fills with water.
All these lakes have an explosive past, a beautiful and majestic present, and a potentially devastating future. They each hold their own story.
Either a new vent erupts enough lava just to partly fill the crater, Lava flows into a depression or a new vent erupts for several weeks, building a crater around its self.
The result is a lake of molten lava. There are currently just 5 lava lakes on earth: Erta Ale (pictured above), Ethiopia; Mount Erebus, Antarctica; Kīlauea, Hawaii; Nyiragongo, Democratic Republic of the Congo; Marum, Ambrym, Vanuatu.