Women dressed up as Vikings attend the annual Viking festival of Catoira in north-western Spain on August 5, 2018. The festival re-enacts past Viking raids in the area and is celebrated annually on the first Sunday of August. (Photo by Miguel Vidal/Reuters)

Francisco Javier Moreno (L), 35, and his wife Maria Auxiliadora Canca, 34, dressed as bandits pose for a photo with their horse as they participate in the third edition of “Ronda Romantica” (Romantic Ronda) in Ronda, southern Spain, May 16, 2015. Ronda Romantica is a cultural, historical and tourist event during the three days where thousands of people of Ronda and about fifty towns around of “Serrania de Ronda” (Ronda Mountain Ranges), dressed in traditional costumes, recreate the era of the bandits, drovers and romantic travelers in the nineteenth century. (Photo by Jon Nazca/Reuters)

A man looks at waves as they crash against a lighthouse in the northern Spanish village of Viavelez, Spain January 13, 2017. (Photo by Eloy Alonso/Reuters)

Children, some in tears, are escorted down a road in Barcelona, Spain, Thursday, August 17, 2017. Police in Barcelona say a white van has mounted a sidewalk, struck several people in the city's Las Ramblas district. (Photo by Manu Fernandez/AP Photo)

is a concentrated solar power plant with a molten salt heat storage system. It is located within the city limits of Fuentes de Andalucía in the province of Seville, Spain.

People walk next to of the pantheon of the Marquesa de San Juan de Nieva, chosen as the best tomb sculpture of Spain in a Spanish magazine this week, in the municipal cemetery of La Carriona in Aviles, northern Spain, October 29, 2015. Catholics will mark All Saints' Day on Sunday by visiting cemeteries and graves of deceased relatives and friends. (Photo by Eloy Alonso/Reuters)

A paper mache pig meant to mock Donald Trump sits on display at a protest against the Republican presidential candidate before the start of the Republican National Convention in Cleveland, Ohio, USA, 17 July 2016. Numerous protest groups are expected in Cleveland throughout the four-day-long convention. (Photo by Jim Lo Scalzo/EPA)