B&O Unlocked: B&O No. 21
History & Heritage
Baltimore
The B&O Railroad Museum’s annual Unlocked series returns—this year with a special tribute to America’s 250th anniversary. This May, we are unlocking a staple of the Roundhouse: the B&O No. 21 passenger coach!
May 20-24, 2026
901 W. Pratt St.
Baltimore
MD
21223
Local Phone: 410-752-2490
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