Here are 12 must-see NYC attractions (all covered by the New York City Explorer Pass): 1. Top of the Rock Observatory — three observation decks (two sheltered, one fully open-air) atop 30 Rockefeller Center (home of Saturday Night Live), open until midnight for skyline views; 2. Empire State Building — art deco masterpiece that was the world's tallest building for four decades, deck open sunrise to 2am with live saxophone most Thursday–Saturday nights; 3. Statue of Liberty & Ellis Island Immigration Museum (ferry ticket); 4. American Museum of Natural History — full-size dinosaur skeletons, space and deep-sea experiences; 5. Museum of Modern Art (MoMA) — works by Van Gogh, Frida Kahlo and Andy Warhol; 6. Big Bus Tours — covers Central Park, Rockefeller Center, Wall Street and the Brooklyn Bridge, with audio commentary in 10 languages; 7. 9/11 Tribute Center and Walking Tour; 8. The Met Fifth Avenue — 2 million works spanning 5,000 years, including the Temple of Dendur (c. 15 BC); 9. Circle Line Sightseeing Landmarks Cruise — a 90-minute cruise past the Statue of Liberty, UN, One World Trade Center and Empire State Building; 10. Central Park full-day bike rental — 843 acres; 11. Intrepid Sea, Air & Space Museum — a 25,000-ton WWII aircraft carrier with the space shuttle Enterprise and submarine Growler; 12. Yankee Stadium Classic Tour — home of the 27-time World Series champion Yankees, including the dugout.