Just outside shortly after you leave Trinidad, explore the Valle de los Ingenios, which unravels beautifully to the north-east. Dozens of sugar mills once dotted this landscape, and today, a few relics of the era survive. The Torre Manaca Iznaga is 44 metres or 144 feet and 244 steps high. Legend has it that the tower was the result of a feud between two brothers over the love of a woman. The reality is less romantic: at the start of the 19th century, a rebellion by slaves in neighbouring Haitii caused the sugar barons to flee. They moved to the heart of Cuba, and built watchtowers like this to spy on slaves. A Cuban historian described it as “the ultimate symbol of slavery in the sugar fields”.