The Middle Falls, New York, U. - The glowing waters of Middle Falls in Letchwork State Park, NY, are certainly a sight to behold –– and one that should be added to any traveler's bucket list.Photo sourced here.
Explore the ancient caves of Hang Son Doong, Vietnam. Hang Son Doong is one of the largest caves in the world and features a fast-flowing underground river. For spelunkers, exploring Hang Son Doong is the equivalent of scaling Mount Everest.