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With a crown on his head, Marcio Mizael Matolias, 44, speaks with children who are interested in his sand castle, at Barra da Tijuca beach in Rio de Janeiro, Brazil, on January 18, 2018. For the last 22 years, Matolias has lived inside his sand castle surrounded by books, golf clubs and fishing poles. Neighbors and friends call him "The King". / AFP PHOTO / MAURO PIMENTEL (Photo credit should read MAURO PIMENTEL/AFP/Getty Images)

With a crown on his head, Marcio Mizael Matolias, 44, speaks with children who are interested in his sand castle, at Barra da Tijuca beach in Rio de Janeiro, Brazil, on January 18, 2018. 
For the last 22 years, Matolias has lived inside his sand castle surrounded by books, golf clubs and fishing poles. Neighbors and friends call him "The King".  / AFP PHOTO / MAURO PIMENTEL        (Photo credit should read MAURO PIMENTEL/AFP/Getty Images)