(CNN) -- They're stunning, dynamic and dangerous, plus they can teach you a thing or two about the Earth's history. Volcanoes possess undeniable allure, doubling as living laboratories and tourist attractions. Volcanologist Rebecca Williams spends every second she can studying and relaxing near the Earth's lifeblood: lava. "I had a real geeky fascination with volcanoes as a kid," says Williams, who is a member of the science faculty at the University of Hull in Yorkshire, England. Share your photos of volcanoes Across the globe, travelers are discovering their inner geek, joining scientists like Williams in exploring the geological formations capable of producing incredible natural beauty and unparalleled destruction. Volcanoes are the earth's natural ventilation system, unpredictably capable of jettisoning steam, ash, molten rock and lava.

Here's a list of volcanoes

OPTIONS:
- Antarctica says should be at the top of your must-visit list.
- B.C. says should be at the top of your must-visit list.
- CNN says should be at the top of your must-visit list.
- Calypso says should be at the top of your must-visit list.
- Earth says should be at the top of your must-visit list.
- England says should be at the top of your must-visit list.
- Europe says should be at the top of your must-visit list.
- Hawaiian says should be at the top of your must-visit list.
- Kilauea says should be at the top of your must-visit list.
- Mount Erebus says should be at the top of your must-visit list.
- Mount Etna says should be at the top of your must-visit list.
- Pantelleria says should be at the top of your must-visit list.
- Pele says should be at the top of your must-visit list.
- Rebecca Williams says should be at the top of your must-visit list.
- Ulysses says should be at the top of your must-visit list.
- University of Hull says should be at the top of your must-visit list.
- Williams says should be at the top of your must-visit list.
- Yorkshire says should be at the top of your must-visit list.


Rebecca Williams says should be at the top of your must-visit list.