An exhibit at the Loudoun Museum that opens Sunday examines Gen. George C. Marshall's rise to world leadership; his Dodona Manor in Leesburg; his wife, Katherine; and life on the home front of Loudoun County during the war. The exhibit is part of America Celebrates the Greatest Generation, a 100-day tribute honoring the World War II generation. 10 a.m.-5 p.m. Monday-Saturday, 1-5 p.m. Sunday, through November, 16 Loudoun St. SW, Leesburg. $2, adults; $1, seniors, students and teachers; free, veterans, enlisted personnel and ages 9 and younger. 703-777-7427.


Former senator John H. Glenn will present the first in a planned annual lecture bearing his name and exploring subjects of interest to the space community. He will share recollections of the early years of manned spaceflight and his return to space in 1998. 8 p.m. next Thursday, National Air and Space Museum Steven F. Udvar-Hazy Center, 14390 Air and Space Museum Pkwy., Chantilly. Free. Tickets are required and can be obtained at the Lockheed Martin IMAX Theater box office, by calling 800-529-2440 or visiting www.tickets.com.


More than 200 classic cars, street rods, muscle cars and custom cars will be on display in downtown Leesburg. Music from the 1950s and '60s on the courthouse lawn. Many shops and restaurants will stay open late. 6-10 p.m. Saturday. Sponsored by the Custom Cruisers of Northern Virginia and the Leesburg Downtown Business Association. $3 donation to benefit the Loudoun Abused Women's Shelter. 703-779-4772.

An exhibit on Gen. George C. Marshall includes information on his home, Dodona Manor.