• Tagged alligators, Everglades National Park, Florida endangered wildlife, National Park, wildlife, World Heritage Sites in Danger

1.5 million acres in southern Florida, dubbed Everglades National Park in 1947, were inscribed by UNESCO in 1979, and then inscribed to UNESCO’s List of World Heritage Sites in Danger in 2010. The national park protects only the southern 20% of the original Everglades, yet it is the third largest national park in the lower 48 states after Death Valley and Yellowstone. Everglades National Park is also an international treasure as one of only three locations on the globe to appear on the three big lists: World Heritage Site, International Biosphere Reserve, and Wetland of International Importance. The diversity here of wildlife, nine Everglades ecosystems and changing habitats might blow your mind. The national park protects 800 species of land and water vertebrates, over 400 bird species, more than 275 species of fish and over 20 species of snakes. Here is a look at the wild beauty of America’s Everglades. [34 Photos]

• Tagged bizarre, Brazil, desert, Lençois Maranhenses, National Park, sand

In Brazil, there is an very unusual national park in the desert. While you might expect to see rolling white sand dunes, you would not expect to see the area dotted with lagoons created by rainwater. Here’s a look at those dunes and lagoons in Lençóis Maranhenses National Park. [29 Photos]

• Tagged clouds, lenticular clouds, meteorological phenomena, phenomenon, UFO clouds, weather

Some folks think lenticular clouds look like a stack of pancakes, but most people think they look like “saucer clouds.” These clouds are more dense, colder, than the surrounding air, so if the ambient weather doesn’t change then it just appears to hover without moving. It’s been said that these “lennies” are a possible explanation for some reported Unidentified Flying Object (UFO) sightings. If conditions are “just right,” lenticular clouds can form about anywhere. Yet this meteorological phenomenon most often appears over mountain peaks and extinct volcanoes. Even that has been dubbed “rare.” If you live in the “flat” lands, then it’s possible you’ve never witnessed an incredible UFO cloud. Photographers love to capture them, so thanks to their hard work, here are 42 fabulous photos of lovely lenticular clouds. [42 Photos]

• Tagged nature, plantations, tea plantation, travel and places

If you drink tea, it’s probably not grown in America. If you live in the USA, then it’s a pretty safe bet that you don’t have a terrific view of a tea plantation. In fact, you probably have no view of a tea plantation — or “estate” — and that’s a pity cause it’s pretty. Grab yourself some tea, if you are so inclined, while you view these terrific tea plantations mixed with tea quotes and fact tidbits. [35 Photos]

• Tagged adventure, cave diving, cavers, caves, caving, ice caves, nature, sea caves

Amazing caves are located all over the globe, different types in a wide variety of sizes are waiting to be explored. Some folks call it caving, spelunking, or even potholing, but it’s all an adventure…at least until something goes wrong and then cavers are called in to rescue spelunkers. It’s been said that “the cave you fear to enter holds the treasure you seek.” While in the mood to go caving, we cruised 500px for creative captures of caves with creative common licenses. Here are the cave photo treasures we found. [35 Photos]

• Tagged outdoor scenes, people, photo contest, photographers, photography, places, travel, Wikimedia Commons Picture of the Year

A decade ago, there were not tons of terrific photos to choose from in the Commons, but photographers have really stepped up by licensing their photos so people can share them along with knowledge. While you may or may not agree with the 12 Wikimedia Commons Picture of the Year winners, most everyone could agree the competition was smoking hot. Categories like animals, plants, people, panoramas, nature, space, architecture and even miscellaneous objects give us a chance to go globe hopping as we celebrate these 45 sizzling snaps. Congratulations winners and thank you to all photographers who make the Commons a fountain of beautiful knowledge! Why don’t you consider uploading your photos to the Commons and maybe we’ll see you listed as a winner next year? [45 Photos]

• Tagged ancient trees, coastal redwoods, crepuscular rays, Del Norte, giant redwoods, Grove of Titans, James Irvine Trail, Jedediah Smith Redwoods State Park, Lost Monarch, Muir Woods, Prairie Creek State Park, Redwood National and State Parks, Redwood National Park, redwoods, Stout Grove, trees

Nature is calling, come out and play; explore and have an awe-inspiring adventure among the giant California redwoods. Here among the fog and trees, sunlight peaks through in god-beams, or crepuscular rays. It’s said that tree-loving people travel from all over the world to visit Redwood National and State Parks, which include Redwood National Park, Del Norte Coast, Prairie Creek and Jedediah Smith Redwoods State Parks. They are not the only California parks with impressive redwoods; Muir Woods National Monument is a sight everyone should see at least once. Yet many visitors to Jedediah Smith will never behold the ginormous redwoods known as the Grove of Titans; that’s because their location is a “secret” in order to protect the massive and ancient trees. [40 Photos]

• Tagged geology, nature, Nevada, rock formations, State Park, Valley of Fire

Back when the dinosaurs walked the Earth, the Valley of Fire was forming. Time and the elements carved the fossilized sand into greats mazes of canyons, arches, ridges, domes, and valleys. Today, the Valley of Fire is a National Natural Landmark and the oldest state park in Nevada. This amazing and colorful wilderness in the Mojave Desert is only about an hour away from the bright city lights of Las Vegas; it comes highly recommended to experience. Sunlight striking the bright red rocks make the valley look like it’s on fire, but there are also layers of multicolored rocks in a “rainbow” of colors that stretch for many miles. Rainbow Vista is a breathtaking site to behold in the Valley of Fire. [38 Photos]

• Tagged archaeological, Inca Empire, Incas, Machu Picchu, Maras salt ponds, Moray Terraces, Peru, rock-cut architecture, ruins, Sacred Valley of the Incas

When you think about the Incas, does Machu Picchu come to mind? While that might be where your destination starts or ends in Peru, there is so much more to see in the Sacred Valley of the Incas, or El Valle Sagrado de los Incas. Look up along the Urubamba River and Valley to see Andes Mountain peaks stretching to a height of 20,000 feet. It is over these steep hillsides that the Incas managed to move massive stones without the help of the wheel. They had no iron tools to cut the stones, but still the pieces fit together so tightly that not even a knife blade can slide between them. The “how’s” are part of the secrets to which we might never know the answers. Huge circular terraces at Moray were thought to be where Incas conducted experimental agriculture. Carved into the mountains are also thousands of small salt ponds, Salineras de Maras, or Inca salt pans. All of this is located in the Peruvian Andes, with Cusco on one end and Machu Picchu on the other; this is the heartland of the Inca Empire. This is the Sacred Valley of the Incas. [42 PICS]

• Tagged architecture, environment, holiday, Ireland, Irish, National Park, nature

We’ve looked at Ireland Now and Then (100 years ago), but to celebrate this St. Patrick’s Day, here’s a look the six national parks of the Republic of Ireland. Killarney National Park was first, and Ballycroy was the last to be established. The Burren National Park is the smallest and Wicklow Mountains National Park is the largest in Ireland. There are also Connemara and Glenveagh as well as landscapes with castles, karst, cliffs, waterfalls and green mossy forests. [38 Photos]

• Tagged biosphere reserve, Cares Gorge, Garganta del Cares, gorge, hiking, nature, Picos de Europa National Park, river, Spain

At the heart of Picos de Europa National Park in northern Spain, an adventure awaits hikers. The trail consists of 9 miles along the Cares River and the Cares Gorge, aka “divine gorge.” Steep cliffs stretch up over 6,500 ft (2,000 m) on one side and the Cares River is as far as 650 feet (200 m) below in the deep gorge. The Cares Gorge trail is extremely popular because it is considered one of the most beautiful walks in all of Spain. The footpath was improved about 60 years ago when tunnels were carved into the mountain to serve as a maintenance trail to a hydroelectric power station. Long ago, some sections of the path were used by shepherds, sheep and even goats; the route provided the only communication between 2 villages when it was snowy. The national park was also named a biosphere reserve by UNESCO. If you visit Spain, you might want to reserve a day to trek this beautiful trail. [38 Photos]

• Tagged cherry blossoms, flowers, Japan, Mount Fuji, nature, Spring, wisteria, wisteria tunnels

If you’ve just been through the mother of all winters, then hang in there. Eventually, all the long hard winters give way to spring. We’ve looked at Europe, where gorgeous bluebells carpet the woods, but winter in Japan gives way to a cheerful springtime bonanza of cherry blossoms. There are also pathways among millions upon millions of exquisite blooms, wonderful hanging wisteria and wisteria tunnels that are like something out of a dream. We hope you like these photos of springtime in Japan. [34 Photos]