Pacific Coast Highway vs Washington DC

Driving the Pacific Coast Highway from Los Angeles to San Francisco is the classic American road trip, a roughly 450-mile ribbon of asphalt that clings to cliffs, dips into surf towns and threads some of the most dramatic coastline on Earth. Start with the beach cities of Santa Monica and Malibu, then roll north to Santa Barbara's red-tile roofs and its graceful Spanish mission. Next come the laid-back college town of San Luis Obispo and the wide sands of Pismo Beach, followed by the hilltop opulence of Hearst Castle and hundreds of elephant seals lounging on the beach at Piedras Blancas. The highlight is Big Sur, where Highway 1 winds high above the ocean past McWay Falls and the arching Bixby Creek Bridge before reaching storybook Carmel-by-the-Sea and the world-class Monterey Bay Aquarium. Five days is the sweet spot for the drive, with extra days for San Francisco, Napa Valley wine country and the coast south of the city. One important warning: landslides regularly close sections of Highway 1 in Big Sur, so check Caltrans QuickMap before you set out and be ready to detour inland on US-101 or do Big Sur as an out-and-back from Carmel.

Washington DC may be the best family city in America, mostly because so much of it is free. In three days with kids you can stand under real spacecraft at the National Air and Space Museum, meet the Hope Diamond and towering dinosaur skeletons at the National Museum of Natural History, and see the original Star-Spangled Banner at the National Museum of American History, all without paying admission. Some sites use free timed-entry passes, so reserve them before you go. Between museums, let kids run on the grassy National Mall, ride the carousel and picnic with food-truck lunches. Save an evening for the monuments at sunset, when the Lincoln Memorial glows, the Reflecting Pool mirrors the Washington Monument and the crowds thin out. The Metro makes getting around easy, and younger children ride free with a paying adult. With more time, see giant pandas, elephants and great apes at the free National Zoo, tour the US Capitol and the stunning Library of Congress, crack codes at the International Spy Museum, and day-trip to George Washington's Mount Vernon and the brick sidewalks of Old Town Alexandria. Spring and fall are ideal, with cherry blossoms in late March to early April.