Spain's King Felipe VI (2ndL) and Queen Letizia (R) Portugal's President Marcelo Rebelo de Sousa (2ndR) and Porto's mayor Rui Moreira (L) visit the Stock Exchange palace in Porto on November 29, 2016, on the second day of their three-day state visit to Portugal. / AFP / POOL / Estela SILVA        (Photo credit should read ESTELA SILVA/AFP/Getty Images)