Each month, we post a photo - all you need to do is work out where it is and you could win three superb illustrated DK Travel Guide books. This month's picture shows a royal palace in a well-known, historic port city. THE PRIZE: The first correct answer chosen at random will win three beautiful illustrated DK Travel country or city guides of their choice, each up to a value of £19.99. LAST MONTH'S ANSWER: The April picture showed the vast San Felipe fortress in Cartagena, Colombia. Follow Nigel on his travels at @MirrorTravelEd and make sure to follow @MirrorTravel for clues and updates.

Source: Daily Mirror April 30, 2019 23:01 UTC