The giant pandas are the zoo's biggest draw, but don't stop with Mei Xiang and Tian Tian.

Established in 1889, the National Zoo is home to some 500 species, many of them rare and/or endangered. A leader in the care, breeding, and exhibition of animals, it occupies 163 beautifully landscaped and wooded acres and is one of the country's most delightful zoos. You'll see cheetahs, zebras, camels, elephants, tapirs, antelopes, brown pelicans, kangaroos, hippos, rhinos, giraffes, apes, and, of course, lions, tigers, and bears (oh my). In spring 2004, the zoo opens a new permanent exhibit entitled "Kids' Farm," which will be exactly as it sounds, a family-friendly farm, complete with dairy cow and barns.

Consider calling ahead (allow at least 4 weeks and call during weekday business hours) for a free 90-minute highlights tour (tel. 202/673-4671), though it's not recommended for kids under age 4. Tours take place only on weekends. The tour guide will tell you how to look at the animals; where, why, and when to look; and will fill your visit with lots of surprises.

Pointers: Enter the zoo at the Connecticut Avenue entrance; you'll be right by the Education Building, where you can pick up a map and find out about feeding times and any special activities. Note that from this main entrance, you're headed downhill; the return uphill walk can prove trying if you have young children and/or it's a hot day. But the zoo rents strollers, and snack bars and ice-cream kiosks are scattered throughout the park.

The zoo animals live in large, open enclosures -- simulations of their natural habitats -- along two easy-to-follow numbered paths: Olmsted Walk and the Valley Trail. You can't get lost and it's hard to miss a thing. Be sure to catch Amazonia, where you can hang out for an hour peering up into the trees and still not spy the sloth (do yourself a favor and ask the attendant where it is).

Zoo facilities include stroller-rental stations, a number of gift shops, a bookstore, and several paid-parking lots. The lots fill up quickly, especially on weekends, so arrive early or take the Metro.