* Fallingwater (1491 Mill Run Rd., Mill Run, Pa.) is open daily except Wednesdays from March 17 through Thanksgiving and some winter weekends. One-hour regular tours admit children older than 6; two-hour in-depth tours admit those older than 9. Family room available for those with younger children. Special options include sunset, brunch, landscape and family tours. Reservations required; tickets available online. Admission: $16; grounds-only pass, $6.
Info: 724-329-8501, http:/