When travel journalist Nick Watt was told that travelers to Havana's Paseo del Prado could find not just snack vendors and tourists on the famous promenade, but a thriving, open-air real market where Cubans buy and sell homes, he was a bit incredulous. But as he discovered during filming of his Travel Channel Show Watt's World , the promenade plays host to a key part of Cuba's nascent real estate market, a recently unleashed aspect of capitalism in the socialist country that, as relations with the United States normalize, opens up a host of questions and possibilities.