A house built on a rock on the river Drina is seen near the western Serbian town of Bajina Basta, about 160km (99 miles) from the capital Belgrade May 22, 2013. The house was built in 1968 by a group of young men who decided that the rock on the river was an ideal place for a tiny shelter, according to the house's co-owner, who was among those involved in its construction. (Photo by Marko Djurica/Reuters)

The sign above the door of restaurant and hotel “Am Paulusbogen” is partially submerged in the flooded centre of the Bavarian town of Passau, about 200 km (124 miles) north-east of Munich June 3, 2013. (Photo by Michaela Rehle/Reuters)

Hermes Cifuentes, who is also known as “Brother Hermes”, performs an exorcism on Marleny Munoz, 55, who claims to be possessed by spirits in La Cumbre, Valle July 7, 2012. Cifuentes says he has performed more than 35,000 exorcism rituals in the past 25 years. (Photo by Jaime Saldarriaga/Reuters)

Canada's Mandy Marchak (R) is taken down by France's Pauline Biscarat during the final match of the Hong Kong Sevens rugby women's invitational cup in Hong Kong March 28, 2014. (Photo by Tyrone Siu/Reuters)

Vintage wine bottles dated from 1946 lay down in the wine cellar of the Massandra winery near Yalta, 28 March 2014 (Yalta is a resort city on the north coast of the Black Sea in the Autonomous Republic of Crimea, a territory recognized by a majority of countries as part of Ukraine and incorporated by Russia as the Republic of Crimea). Massandra winery has one of the largest wine collections in the world. (Photo by Sergei Ilnitsky/EPA)

A tourist reacts as an elephant sprays her with water in celebration of the Songkran water festival in Thailand's Ayutthaya province, April 9, 2014. Songkran, the most celebrated festival of the year, marks the start of Thailand's traditional New Year. (Photo by Chaiwat Subprasom/Reuters)

The “Escape Velocity” moving sculpture by artist group Poetic Kinetics looms over Coachella festivalgoers on the Empire Polo Field, on the first day of the 2014 Coachella Music and Arts Festival in Indio, California, on April 11, 2014. (Photo by Chris Pizzello/Invision)

Employee Sandra Jaeckel, at the photographer's request, adjusts a ribbon around the neck of a giant chocolate Easter bunny at the production facility at Confiserie Felicitas chocolates maker on April 9, 2014 in Hornow, Germany. Easter is among the busiest times of year for the chocolatier, which produces Easter bunnies and eggs in a wide variety of sizes and styles. Founded by Belgian expats Goedele Matthyssen and Peter Bientsman the company will soon celebrate its 21st year. (Photo by Sean Gallup/Getty Images)