NASA says it could be another 20 years before humans touch down on Mars, but in a sense, the Mars Society has been exploring the red planet for more than a decade – in Utah. Photo: Csilla Orgel, a geologist of Crew 125 EuroMoonMars B mission, makes her way back to the Mars Desert Research Station (MDRS) in the Utah desert March 3, 2013. The MDRS aims to investigate the feasibility of a human exploration of Mars and uses the Utah desert's Mars-like terrain to simulate working conditions on the red planet. Scientists, students and enthusiasts work together developing field tactics and studying the terrain. All outdoor exploration is done wearing simulated spacesuits and carrying air supply packs and crews live together in a small communication base with limited amounts of electricity, food, oxygen and water. Everything needed to survive must be produced, fixed and replaced on site. (Photo by Jim Urquhart/Reuters)

Located at La Casa Del Arbol or “The Treehouse” in Baños, Ecuador, this small house was built for the stunning view on the Tungurahua Volcano it offers. But the real attraction is the swing attached to one of the tree's branches. It is far from your average swing, and it is surnamed the "Swing at the End of the World" for a good reason. Located off a giant cliff at over 2,600 meters above sea level and with absolutely no safety features, this swing promises a serious thrill to whoever is brave enough to ride it.

What do you imagine when you look through a key hole? Do you imagine seeing a Wonderland with a sinister Queen of Heart ruling over a magical kingdom? Or you might imagine an eye staring back at you, if you’re a fan of horror movies. Least of all do you expect seeing a picturesque view of St. Peter’s Dome, perfectly framed by green hedges. Is it a lucky coincidence, or was it intended by the maker? We might never know. However, this became a curious sightseeing spot for many tourists who visit Rome. Thus, if you’re ever in the area of Priorato dei Cavalieri di Malta, be sure to peep into this key hole.

Morenada dancers perform during the “Senor del Gran Poder” (Lord of Great Power) parade in La Paz, May 21, 2016. (Photo by David Mercado/Reuters)

360Cities PRO member Andrew Bodrov has just published another stunning panorama stitched from images taken by the Curiosity Rover on Mars. Photo: “Mars Panorama – Curiosity Rover: Martian Solar Day 177” (Photo by NASA/JPL-Caltech/MSSS/Andrew Bodrov)

Revellers chase a bull into the sea during the “Bous a la Mar” festival on July 14, 2011 in Denia, Spain. The Spanish “Bous a la Mar” or “Bulls to the Sea” festival is held in honour of the Santisima Sangre and commemorate a monk named Pedro Esteve, who, as the legend has it, saved the coastal town of Denia from a plague in 1633. The bulls chased into the sea are later brought back to land by small boats. (Photo by Jasper Juinen/Getty Images)

“The scientists behind NASA's $2.5 billion Curiosity rover mission on Mars on Tuesday explained the nature of a tiny, gleaming "flower" embedded in Red Planet rock, and revealed where they'll be using the SUV-sized robot's drill for the first time”. – Alan Boyle via NBCNews.com

Photo: Scientists say that a “Martian flower”, seen here in an image from the Curiosity rover's Mars Hand Lens Imager, is a 2-millimeter-wide grain or pebble that's embedded in the surrounding rock. Another, darker-colored mineral grain can be seen above and to the left. (Photo by NASA)

Women take part in a march in Santiago on October 19, 2016, to protest against violence against women and in solidarity for the brutal killing of a 16- year- old girl in Mar del Plata, Argentina last week The killing, in which the high school student was allegedly raped and impaled on a spike by drug dealers, is just the latest incident of horrific gender violence in Argentina, which has seen more than a year of mass marches to protest brutality against women. (Photo by Claudio Reyes/AFP Photo)