2155 Best Sights in USA

This one-of-a-kind education center focuses on a sprawling 1½-acre model of the entire San Francisco Bay and Sacramento–San Joaquin River delta system, complete with flowing water. Now open for public exploration, the model has been used by the U.S. Army Corps of Engineers to reproduce the rise and fall of tides, the flow of currents, and the other physical forces at work on the bay.

California's oldest state park is the best place to see old-growth redwoods without going north of San Francisco, and it's far less crowded than Muir Woods. The parkland ranges from sea level up to 2,000 feet in elevation, which means the landscape changes often, from dark redwood groves to oak pastures that are deep green in winter and bleached nearly white in summer. The countless waterfalls are the most visible during the winter and spring rains. To get a feel for the redwoods, take the Redwood Loop Trail, an easy half-mile path, great for kids, that takes in some of the tallest trees here, including the Mother of the Forest and the Father of the Forest. Pick up the trail from the parking lot across from the visitor center, inland at park headquarters in Boulder Creek. A brochure you can pick up here points out significant trees along the way.

If you have a little more time, consider taking the Sequoia and Skyline to the Sea trails for a 4-mile loop that takes you past a pioneer family cabin to a platform overlooking Sempervirens Falls, up the slope of Slippery Rock, and then along stretches of Opal Creek (where you meet up with Skyline to the Sea).

Hikers looking for a challenge might consider the strenuous but scenic 9.5-mile trek from Rancho del Oso valley (accessed on the western portion of the park, east of Highway 1) uphill to Chalk Mountain, which meanders along a ridge with sweeping views of the park and coast before steeply descending by way of the Whitehouse Ridge Trail. Look for the Clark Connection, up Canyon Road, as your starting point.

A short walk from the highway on the Marsh Trail leads to the Rancho Del Oso Nature Center (www.ranchodeloso.org). Open on weekends from noon to 4, the center has natural-history exhibits and is the starting point for several self-guided nature walks.

White sand beaches, blue-green waters, and a tall lighthouse mark this quiet beach at the southern tip of Cape Lookout National Seashore. A boat is the only way to get here. Passenger ferries leave from Harkers Island and Beaufort, while passenger and vehicle ferries leave from Davis and Atlantic. Land on the sound side, then walk across a path to the beach, where you'll be greeted by a long beach strand full of seashells, including large whelk shells. In season, you can also climb the lighthouse tower or tour a museum in the keeper's quarters. Amenities: toilets. Best for: solitude; sunrise; sunset; swimming; walking.

A vigorous but nontechnical 1½-mile scramble up the slickrock (smooth, rather than slippery, sandstone), this path leads to a nearly 360-degree view of red rock country. Follow the cairns (rock piles marking the trail) and look for the footholds in the rock. Carry plenty of water: though short, the trail offers little shade and the pitch is steep. You can see the Verde Valley and Mingus Mountain in the distance. Look for the barely discernible "J" etched on the hillside marking the former ghost town of Jerome 30 miles away.

Toward sunset, when this monolith is free of shadow, the red sandstone seems to catch on fire. From the highway, Courthouse Butte sits in back of Bell Rock and can be viewed without any additional hiking or driving.

Although there's not a lot to see inside, this gargantuan complex does have a one-room visitor center with a historical timeline, photo displays, and a video, all highlighting the nation's agricultural roots, current policies, and future challenges.

In 1776 Dorchester Heights hill commanded a clear view of central Boston, where the British had been under siege since the preceding year. Here George Washington set up the cannons that Henry Knox, a Boston bookseller turned soldier, and later secretary of war, had hauled through the wilderness after their capture at Fort Ticonderoga. The artillery did its job of intimidation, and the British troops left Boston, never to return. The view of Boston from the site is magnificent. Sadly, the tower is not open to the public, but the lovely park grounds are a destination on their own on a warm day.

Moss Beach's biggest attraction is the spectacular Fitzgerald Marine Reserve, a 3-mile stretch of bluffs and tide pools that occupy 32 acres. Since the reserve was protected in 1969, scientists have discovered many new aquatic species. The best time to visit is during a zero or negative low tide, when you're likely to find crabs, anemones, urchins, and sea stars. Volunteer naturalists are around to answer questions on the weekends. Self-guided tours available, but pets are not allowed.

The town comes to life—and traffic to a standstill—on the third weekend in October, when some 250,000 people gather for the Half Moon Bay Art and Pumpkin Festival. Highlights include a parade, pie-eating contests, live music, plenty of pumpkin-themed food and drink, and a "weigh-off" of giant pumpkins, some more than 1,900 pounds.

At 923 feet tall, craggy Hawk Hill is the best place on the West Coast to watch the migration of eagles, hawks, and falcons as they fly south for winter. The main migration period is from September through October, and the modest Hawk Hill viewing deck is about 2 miles up Conzelman Road from U.S. 101; look for a Hawk Hill sign and parking right before the road becomes one way. In September and October, on rain- and fog-free weekends, docents from the Golden Gate Raptor Observatory give free lectures on Hawk Hill; call ahead of time for details.

An outcropping of nature in a sea of North Berkeley homes, this is an unbeatable spot for a sunset picnic. Look for amateur rock climbers, after-work walkers, and cuddling couples, all watching the sun sinking beneath the Golden Gate Bridge. Come early to grab a spot.

Runners, joggers, and power walkers charge along the 3.4-mile path that encircles this 155-acre heart-shaped natural saltwater lake. Crew teams glide across the water and boatmen guide snuggling couples in authentic Venetian gondolas (fares start at $60 per couple for 30 mins; 510/663–6603, gondolaservizio.com), while yogis, jugglers, and picnickers look on from the shore. Lakeside Park, which surrounds the north side of Lake Merritt, has several outdoor attractions, including the small children's park, Children's Fairyland (699 Bellevue Ave.), and the Lake Merritt Wildlife Sanctuary, a water and air fowl haven that was also North America's first wildlife refuge. Don't miss the nearby Grand Lake neighborhood, centering on the parallel strips of Lakeshore Avenue and Grand Avenue, for good browsing and even better eating.

Built in 1914 to compete with the Kolbs' photographic studio, the building was designed by architect Mary Jane Colter. The combination lookout point, museum, and gift shop has a collection of fossils and geologic samples from around the world. An upstairs loft provides another excellent overlook into the gorge below.

If you're curious about the rehabilitation of marine mammals from the Pacific—and the human practices that endanger them—stop by this research hospital and rehabilitation center for rescued aquatic creatures. An observation area overlooks pools where sea lions and seals convalesce, and informational exhibits explain the center's history and work. You'll learn even more—and get closer to the animals—on a 45-minute docent-led tour.

A 1,000-acre wildlife sanctuary along the Bolinas Lagoon, this Audubon Canyon Ranch preserve gets the most traffic during late spring. Quiet trails through the rest of the preserve offer tremendous vistas of the Bolinas Lagoon and Stinson Beach. On Saturdays, ranch guides are posted throughout to point out animals—including waterbirds, shorebirds, bobcats, and coyotes—and answer questions. During the week, check in at the small bookstore and take a self-guided tour.

In the center of Santa Clara University's campus is the Mission Santa Clara, the site of the first college of higher learning in California (est. 1851). Some of the roof tiles of the current building, a reproduction of the original, were salvaged from earlier structures, which dated from the 1770s and 1820s. Restored original adobe walls (1822) and a spectacular rose garden (viewable, but not open to the public) remain intact as well.

The restored Victorian storefronts that line the four historic blocks of Oakland's original downtown now contain restaurants, cafés, offices, shops, galleries, and a Friday morning farmer's market. Architectural consistency distinguishes the area from surrounding streets, giving it a distinct neighborhood feel. Old World–inspired Caffè 817 (817 Washington St.) serves poached eggs and polenta, fresh-pressed panini, and bowls of café latte in an artsy atmosphere. Stop in for a deli sandwich at Ratto's International Market (827 Washington St.), an Italian grocery that's been in business for more than a century, or head over to the renovated Swan's Market (538 9th St.), where you can choose from an array of high-caliber multicultural eateries that offer takeout. Pacific Coast Brewing Company (902 Washington St.) pours a mean microbrew, while The Trappist (460 8th St.) wins loyalty for its exhaustive selection of Belgian ales. Various pop-up boutiques and permanent shops throughout the neighborhood are reinvigorating the storefront scene.

If a quarantine is not in effect (watch for signs), from November through April you can look for mussels amid tidal pools and rocky outcroppings at Pescadero State Beach; a fishing license is required. Any time of year is good for exploring the beach, the north side of which has several secluded spots along sandstone cliffs. Across U.S. 101, the 243-acre Pescadero Marsh Natural Preserve has hiking trails and is the site of a large and active blue-heron rookery. Early spring and fall mornings are the best times to come, when there are lots of migrating birds and other wildlife to see. No pets on the beach or in the preserve. Amenities: parking (fee); toilets. Best for: solitude; sunset; walking.

With its laid-back restaurants (including Half Moon Bay Brewing Company) and waters full of fishing boats and sea lions, the harbor is a nice place to wander, and you can pick up shoreline trails at nearby Pillar Point.

The original Point Montara fog signal station was established in 1875. The lighthouse, which originally stood on Cape Cod from 1881 to 1922, was added in 1928, and it still has its original lightkeeper's quarters from the late 1800s; it's the only known lighthouse to have served on both coasts. Gray whales pass this point during their migration from November through April, so bring your binoculars. Visiting hours (9 am to sunset) coincide with morning and afternoon check-in and checkout times at the adjoining youth hostel. Parking is free, but a one-hour time limit is enforced.

Sequoia sempervirens, or coastal redwoods, grow to 150 feet tall in Redwood Regional Park, one of the few spots in the Bay Area that escaped timber-hungry loggers in the 19th century. The 1,830-acre park has forested picnic spots and myriad hiking trails, including part of the 32-mile East Bay Skyline National Trail, which links Redwood to four other parks in the Berkeley–Oakland hills. Also check out adjacent Joaquin Miller Park for beautiful East Bay views and lush forested trails.

Well-to-do Palo Alto and its intellectual neighbor, Stanford University, are about 35 miles south of San Francisco. Stanford's gorgeous grounds are home to a primordial-looking cactus garden, a stone river sculpture by Scottish artist Andy Goldsworthy, wood carvings and indigenous artworks from Papua New Guinea, and an excellent art museum—the Iris and B. Gerald Cantor Center for Visual Arts (open daily except Tuesday)—whose lawn is planted with bronze works by Auguste Rodin. Free one-hour walking tours of the campus leave daily at 11 and 3:15 from the visitor center.