Beach sand dune on Emerald Coast, Florida. (Thinkstock) Florida's beaches attract tourists from around the country, but they might not be able to support big crowds for much longer, because the beaches are running out of sand. According to the Associated Press, the U.S. Army Corps of Engineers has prioritized the sand loss problem in Miami-Dade county, where some of the most popular beaches are located, and are holding public meetings to discuss where new sources of sand might be...

Lake Guatavita - Colombia Everyone has heard of treasure buried at the bottom of the ocean after violent storms caused shipwrecks -- an estimated three million wrecks are scattered across the bottom of the seas, and they could be valued as high as $60 billion, says Popular Mechanics. But shipwrecks are hardly the only places where treasures have been lost. From a lake in Colombia that's thought to be the site of El Dorado to a Canadian island that might...

A view of the New World on the ostrich egg globe. (Used with permission of The Portolan, copyright Washington Map Society) A map etched into the surface of a grapefruit-sized ostrich egg from the early 1500s might be the oldest known globe to show the New World, according to experts. The globe, which was purchased by an anonymous collector at the London map fair in 2012, might have been the model for what was until now thought to be the...

Bird's Nest Soup From hot chocolate in the winter to a scoop of ice cream in the summertime, certain foods just seem to go well with the changing seasons. But climate and geography have more of an effect on what we eat than simply seasonal preferences. According to research done by the International Food Policy Research Institute, climate change will create new problems for the major crops cultivated in different regions of the world. Even though these changes in the...

This video image provided by KABC-TV shows rescue officials working the scene of an accident where a tour bus, left, crashed and turned over injuring multiple passengers, Thursday Aug. 22, 2013 in Los Angeles. (AP Photo/KABC-TV) LOS ANGELES — A tour bus carrying gamblers to an Indian casino overturned along a Southern California freeway after sideswiping a car, injuring more than 50 people on board Thursday, authorities said. (MORE: ) The driver made an "unsafe lane change" to the left,...

Dolphins ride the waves off the coast of South Africa. (Greg Huglin/greghuglin.com). Monster 25-foot waves can scare even the most experienced surfers, but the dolphins in these stunning images by Greg Huglin, taken off the coast of South Africa, glide and leap through the waves with the greatest of ease, as if performing a graceful dance. California-based photographer and filmmaker Huglin, who has also released the 20-minute film "Surfing Dolphins," has long been fascinated by dolphins in the wild. "I...

LOS ALAMOS, N.M. — One of the most popular sites at Bandelier National Monument is set to reopen Monday. Accessible only by a series wooden ladders and steep stone steps, the kiva at the Alcove House site is located at the edge of a niche some 14 stories above the canyon floor. The site was closed in April due to concerns over structural stability of the kiva. The walls of the structure had loosened and there were other signs of...

LIMA, Peru — The ruined city known as the "cradle of gold" was once a mountaintop refuge of Incan royalty, with elegant halls and plazas much like those of fabled Macchu Picchu just 30 miles (50 km) away. Yet only a handful of tourists visit each day, those willing to make a two-day hike to reach its majestic solitude. That is about to change: the national government has approved what will be Peru's first aerial tramway. Bridging the deep canyon...

Pilot Andre Borschberg flies the experimental solar-powered aircraft, Solar Impulse, above Lake Geneva during a test flight from Payerne to Geneva on September 21, 2010. (JEAN REVILLARD/AFP/Getty Images) Traveling the world in a solar-powered vehicle seems like something out of a science fiction novel now, but we might soon be zipping through the sky and plying the oceans' waters in planes and boats powered by the sun. Three projects are proving that technology has advanced enough to make solar-powered circumnavigation...

Diving into the water in Tasiilaq in southeastern Greenland. (Kristinn Einarsson/Visit Greenland) With its Arctic climate and towering icebergs, Greenland may not be known as a swimming destination, but its chilly reputation doesn't deter locals and tourists alike from taking a plunge into the island's crystal-clear waters, according to the national tourist board Visit Greenland. “Of course, it is colder here, but the water can easily get to 5-10 degrees in bays and lakes, which means that the water in...

Nomadic Peoples of the World Nomads come back after travelling for seven days in the Moroccan desert on March 16, 2013 in M'hamid El Ghizlane, southeast of Zagora. (FADEL SENNA/AFP/Getty Images) For thousands of years nomads have roamed the earth, living off the land with their livestock, or hunting and gathering food with the changing seasons. Climate change and globalization have indisputably impacted their lifestyles, but photographer Jeroen Toirkens, who spent 12 years living with numerous nomadic peoples around the...

In a reverse of the normal structure of zoos, the Orana Wildlife Park in Christchurch, New Zealand is offering visitors the chance to step into a cage and be watched by a group of curious animals. In this case, the animals are a pride of hungry lions, who swarm the cage and even climb up the sides and top of it. According to ABC News, the cage is attached to a flat-bed truck so that the tourists can be driven...