GETTING THERE: Fallingwater is about four hours from Washington. Take Interstate 70 west to I-68 west, to Exit 14. Turn left on Route 40 west and continue to Farmington, Pa. Take Route 381 north for 10 miles.
THE HOUSES: Fallingwater (724-329-8501, www.fallingwater.org) offers one-hour tours Tuesday-Sunday every half-hour. Cost: $15 per adult, $10 for youths 6 to 18 (less on weekdays). Reservations advised. There's a child-care center for kids under 6, who aren't permitted on tour ($2 per hour per child). On Saturdays there is a four-hour hike of the grounds, plus the house tour. This summer, Fallingwater will offer special sunset tours for groups, with hors d'oeuvres and wine on the roof ($75/person). Kentuck Knob (724-329-1640, www.kentuckknob.com) has tours daily from 9 a.m. to 4 p.m.; admission is $12 weekdays, $15 on weekends.
WHERE TO STAY: The Inne at Watson's Choice (888-820-5380, www.watsonschoice.com) is a bed-and-breakfast at the edge of nearby Uniontown, Pa.; rooms are $98 and $115, and packages include admission to both Wright homes. For extravagance, the Nemacolin Woodlands Resort (800-422-2736, www.nemacolin.com) offers a PGA-level golf course, spa and four-star dining; rooms range from $150 to $3,000. Or there's a Holiday Inn in Uniontown, along with other chain lodging.
WHERE TO EAT: Ohiopyle, Pa., has a cafe for lunch near the Wright homes. Dinner options center on Uniontown and include Caileigh's (105 E. Fayette St., 724-437-9463, www.caileighs.com), which features capably made French dishes including truffled seabass and veal roulade. Chez Gerard (Business Route 40, Hopwood, 724-437-9001, www.chezgerard.net) serves French dishes, too: deer medallions and lobster Napoleon. Meloni's (105 W. Main St., 724-437-2061) has standard-issue Italian food, burgers and sandwiches.
INFO: Pennsylvania Tourism Office, 800-VISIT-PA, www.visitpa.com; Laurel Highlands Visitors Bureau, 800-333-5661, www.laurelhighlands.org.