An ice tunnel inside Matanuska Glacier, Alaska
Hollow Rock in Grand Portage, Minnesota is roughly 6 miles southwest of the Canadian border, on Lake Superior’s splendidly scenic North Shore, the town of Grand Portage, Minnesota enjoys a spectacular night sky. Other sights here include this fetching lure for photographers—Hollow Rock. Over the ages the natural arch has been sculpted by the elements and the cold waters of Lake Superior. Save some space in your travel itinerary (as well as in your camera) and explore the area’s other natural attractions: National parks like Isle Royale and Voyageurs, large swathes of state forest, myriad lakes, roiling rivers, and even some pretty impressive waterfalls.
This bridge is called the Fairy Bridge (Xian Ren Qiao) or Bridge Fairies, it was formed when the limestone karst mountain cut through the river Buliu. Bridge Fay is about 40 km (straight line) northwest of Fengshan in the northwestern province of Guangxi, China. Until recently, this place was not known outside of China. [ http://thinktheta.blogspot.com/2011/12/fairy-bridge-largest-natural-bridge-in.html]
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