Quinta de regaleira, Portugalreblog
Fingal’s Cave, Scotland is similar a structure to the Giant’s Causeway across the sea in Ireland. The cave is filled with brilliant hexagonal shaped rocks which were formed by solidified lava which was pushed up from the earth and revealed when the sea eroded the rock and dirt around them.
Stepping into the cave is like stepping into another world and provides a truly surreal experience. Over the years the cave has become shrouded in legend in folklore and today features heavily in popular culture.reblog
In 1928 excavators uncovered one of the most breathtaking waterfalls in the world some 1,120 feet below the surface of Lookout Mountain, Chattanooga. The waterfall itself is 145 feet high and glows a fabulous pink colour due to the rocks around it, giving it the name Ruby Falls.
Research suggests that it was created some 200 to 240 million years ago at a time when eastern Tennessee was still below sea level. As well as the falls, visitors can also view hundreds of stalactites, stalagmites, columns, drapery and flowstone within Lookout Mountain, all of which is nearly as surreal to behold as Ruby Falls itself.reblog
The largest underwater cave in Texas has been known to swallow people whole, it has also provided a nearly non-stop source of water for thousands of years. Jacob’s Well is an amazing sight to see, as the water from deep within the well pools out into a natural spring that runs off into Cypress Creek.reblog