Trakošćan is a castle located in northern Croatia (in the Varaždin County) that dates back to the century (first written mention is in castle VI. Photo by Roberto Pavic -- National Geographic Your Shot
The Wave in Utah, USA, has become a popular attraction in the Coyote Buttes area of the Paria Canyon-Vermillion Cliffs Wilderness on the Utah-Arizona border. The Wave is a multi-colored chute that has been cut into a sandstone mountain.
Sea Cave, Malta Sea caves or the Blue Grotto are located on the island of Filfla in Malta. These caves are popular for their beauty and their location when combined with the sunrise, leads to beautiful shades of blue in the water.