Shuffling through the fun, but chaotic gathering of authors and larger-than-life book characters at last weekend's Children's Book Festival in Savannah, my six-year-old, Marcos, jumped in front of his sister and yelled, “Entra!” with a hand wide open, waiting for a High Five slap in return. With us...

One of the most striking things driving into Havana is the spread of tropical colors, etched on colonial and art deco buildings, some fitted with stained-glass windows and topped with elaborate Moorish-style rooftops that project over the Malecón, a sea wall that hugs five miles of the city's coastline,...