World's coolest secret tourist attractions

Grand Prismatic Spring, Yellowstone National Park, Wyoming

Ditch the traveler crowds at Old authentic and head to Yellowstone's secret star, the Grand Prismatic Spring. Around 370 feet wide and 121 feet deep, Grand Prismatic is the chief hot spring in the park and the third principal in the world.

Newgrange, Ireland

Despite the name, Newgrange is in fact older than Stonehenge. The passage tomb (and ancient spiritual place) is most well-liked during the winter solstice. Each year approximately December 19 to 23, the rising sun aligns with a hole in Newgrange's roof, and as the rays shine during, the whole chamber lights up.

Ngorongoro Crater, Tanzania

Nicknamed "Africa's Garden of Eden," this volcanic crater houses concerning 25,000 wild animals, as well as a very diverse sub-Saharan ecosystem—meaning visitors can see the whole thing from open plains to alkaline lakes in one spot.

The Colosseum (Underground), Italy

Rome's Colosseum, an very old amphitheater and previous gladiator battleground, is one of the world's most well-known attractions. But most people don't know that there's a whole secret section that can now be explored—the underground.

Pamukkale, Turkey

The bright blue pools of Pamukkale in Turkey look as if they're session atop piles of snow or cotton, except in realism the natural pools and terrace are formed by calcite deposits.

Racetrack, Death Valley, California

It's a mystery of the desert: In a cut off valley between the Cottonwood and Last Chance mountain ranges, the Racetrack features rocks that come into view to be enthused by a secret force. The rocks sit on a playa (dry lakebed) and move crossways the flat surface, send-off trails in their wake.

Gruner See, Austria

Here's a reason to return to an end: If you visit Austria's Gruner See (Green Lake) in the winter, you can hike about the park. Visit again in the summer and the snow and ice on the close mountains have melted and snowed under the park with emerald-green water.

Ha Long Bay Floating Villages, Vietnam

Rather than living next to the water, the inhabitants of the Ha Long Bay fishing villages live on the water in suspended houses. They make a income off the sea as well, with most people working as fishermen or shrimp farmers.

'Mano Del Desierto', Chile

Is this massive hand raising out of Chile's Atacama Desert the start of a grotesque zombie uprising? No—it's a sculpture by artist Mario Irarrazabal. The 36-foot-tall hand was erected in 1992 out of iron and cement; its enormous size is meant to highlight human vulnerability.

Moses Bridge, Netherlands

Just like the biblical story of Moses parting the Red Sea, the Moses Bridge parts the waters of a moat in the Netherlands. The design was inspired by the close fortress (Fort de Roovere)—designers didn't want to build a customary bridge and overcome the point of a moat, so they opted to build this intriguing path.