Laugarvatn Fontana in Iceland is home to a unique and delicious treat: bread that's baked using the geothermal energy of hot springs. Tourists are invited to join the bakery's daily tours, during which they can watch as Sigurður "Siggi" Rafn Hilmarsson buries a pot filled with freshly-made dough beneath layers of lava sand. After baking for 24 hours the bread is "unearthed" and you'll get a slice.
This tour last for 30 minutes and is suitable for all ages.
If you'd rather not join the tour, you can buy some bread in Laugarvatn Fontana's reception area.