Hengill, Iceland - Hengill was formed from a Palagomite tuff, it is a central volcano and has a giant magma chamber beneath it. When thick basalt lava flows cool, they form hexagonal cracks, called columnar joints
Oregon hiking- Opal Creek Scenic Area and Wilderness. It is located east of Salem, in the Willamette National Forest. Opal Creek runs through thousands of acres of protected old growth forest, crisscrossed with over 30 miles of hiking trails.
The Bridge of Immortals, Huangshan, China. The world’s highest bridge is situated in the Yellow Mountains, also known as Huangshan. From the bridge you will have a breathtaking view, and see how the clouds are touching the mountainsides beneath you.