Two Herens cows lock horns during the qualification round of the annual “Battle of the Queens” cow fight finals in Aproz, in the western Alpine canton of Valais May 5, 2013. Each year when taken to the alpine pastures, the cows test their strength and fight for the herd's leadership. The competition continues until a new queen has forced all the other cows to retreat. (Photo by Valentin Flauraud/Reuters)

A woman carries a stone cross in a cemetery in the village of Copaciu, southern Romania, on May 2, 2013. As part of a Holy Week tradition, Romanians visit, on Maundy Thursday, the graves of their loved ones, light fires and share food with community members in memory of the departed. Orthodox worshipers celebrate Easter on May 5. (Photo by Andreea Alexandru/ Mediafax)

The eighth annual Nipponbashi Street Festa stamped Osaka March 20, 2012 (Nipponbashi is Osaka’s geek district – much like Akihabara is for Tokyo). Cosplayers turned up in colourful outfits, dressing as characters from their favourite manga, anime, and video games. The street was closed to cars, and otaku flooded the streets, snapping pics, cosplaying, and hanging out.

“With the traditional tapping-ritual, the Oktoberfest has been opened on saturday, September 22, 2012. Despite the rather wet weather on saturday, the first weekend was te xpeted sucess: Approximately 850.000 guests from Munich, Bavaria, the rest of Germany and from all over the world came to visit the 179th Oktoberfest on the opening weekend. About one million liters of beer and about nine oxen have already been sold”. – Oktoberfest.de. (Photo by ◊CHЄЄKY◊MINX◊PHOTO◊DIARY◊)

Festival-goers enjoy the mud during the annual Boryeong Mud Festival at Daecheon Beach on July 18, 2015 in Boryeong, South Korea. The mud, which is believed to have benefical effects on the skin due to its mineral content, is sourced from mud flats near Boryeong and transported to the beach by truck. (Photo by Chung Sung-Jun/Getty Images)

A ring-tailed lemur sunbakes at Melbourne Zoo in Melbourne, Victoria, Australia on December 21 2016. (Photo by Julian Smith/EPA)

Melania Trump during Melania Trump Unveils The 2007 Cadillac Escalade to The Fashion World at Milk Studios in New York City, New York, United States. (Photo by Jamie McCarthy/WireImage)

A mahout rides an elephant at Tad Sae Waterfall outside Luang Prabang, Laos July 31, 2016. Protected by the United Nations cultural heritage agency UNESCO, Luang Prabang is one of the most alluring places in the region – a city that evokes old-world romance that has gained a reputation as a travellers' Shangri La. (Photo by Jorge Silva/Reuters)