1. Golden Gate Bridge, San Francisco, CA
Once the world’s longest suspension bridge, the 1.7-mile Golden Gate has
since been surpassed in size-but not in beauty. Hundreds of people
walk the span from San Francisco to Sausalito each day, so you’ll want
to plan wisely. Bypass the two-hour meters at the overcrowded main lot
off S.F.’s Merchant Road in favor of ample free parking at Crissy Field
Center (crissyfield.org). There, fair-trade coffee awaits at the
Warming Hut Café & Bookstore, a whitewashed shed near the shore
that’s the perfect place to fuel up for the gentle, half-mile Bay Trail
to the bridge. The Golden Gate’s best-kept secret: Although it’s
closed to pedestrians after sunset, gates are opened for star-gazing
cyclists. We wouldn’t dare rank nation’s natural assets—who could choose
between Yosemite and Yellowstone? But the man-made attractions? You
bet. Behold, our picks for the country’s most epic buildings,
monuments, and engineering feats, with advice for navigating them
smarter, better, and with fewer crowds.