Jacob's Well -- Wimberly, Tx: One of the most significant natural geologic treasures in the Texas Hill Country. It is one of the longest underwater caves in Texas and an artesian spring. Jacob’s Well surges up thousands of gallons of water per minute!
The Swarovski Crystal Worlds (Swarovski Kristallwelten) is a museum, located in Wattens, Austria. The museum was built in 1995 in celebration of the anniversary of the Austria based crystal company Swarovski.
Secluded cave near Lagoa Algarve Portugal [Portugal is has it all. great food and wine sights natural spots (like this one) friendly people. and you can get away with your high school Spanish if you need to.
Marble Cave, Chile Chico, Chile – The most spectacular caves network in the world and this Marble Cathedral is absolutely magnificent. It’s located in Patagonia, Chile on the second largest freshwater lake in South America, General Carrera.
Devil Spring - one of seven springs that are located in the private Ginnie Springs park (northern Florida), a cave divers paradise. For non-divers there is still plenty to see when snorkelling. The intense blue colour is due to the water depth at the cave