Free Events

Free things to do in Cambridge and Somerville — library programmes, gallery openings, public lectures, outdoor concerts and community events.

1. Hourly Tour Saturday, October 17, 2026 at 11:00 AM Longfellow House - Washington's Headquarters NHS
2. 250th Deep Dive Tour: Headquarters of a Revolution Saturday, October 17, 2026 at 11:30 AM Longfellow House - Washington's Headquarters NHS
3. Hourly Tour Saturday, October 17, 2026 at 12:00 PM Longfellow House - Washington's Headquarters NHS
4. Lanterns from Moon to River Saturday, October 17, 2026 at 1:00 PM Mass Audubon Magazine Beach Park Nature Center
5. Hourly Tour Saturday, October 17, 2026 at 1:00 PM Longfellow House - Washington's Headquarters NHS
6. Hourly Tour Saturday, October 17, 2026 at 2:00 PM Longfellow House - Washington's Headquarters NHS
7. Bluegrass Jam Saturday, October 17, 2026 at 2:00 PM The Burren
8. Fall Party Saturday, October 17, 2026 at 2:00 PM Kendall/MIT Open Space - 292 Main St
9. Fall Party Saturday, October 17, 2026 at 2:00 PM MIT
10. Super Pink Saturday, October 17, 2026 at 2:00 PM Davis Square Plaza
11. 250th Deep Dive Tour: Headquarters of a Revolution Saturday, October 17, 2026 at 2:30 PM Longfellow House - Washington's Headquarters NHS
12. Hourly Tour Saturday, October 17, 2026 at 3:00 PM Longfellow House - Washington's Headquarters NHS
13. Why Cat Why? Saturday, October 17, 2026 at 3:00 PM Sally O'Brien's
14. Express Tour Saturday, October 17, 2026 at 3:30 PM Longfellow House - Washington's Headquarters NHS
15. Irish Session Saturday, October 17, 2026 at 4:00 PM The Druid
16. Mean Black Spider Saturday, October 17, 2026 at 4:00 PM The Plough and Stars
17. Niall Connolly Saturday, October 17, 2026 at 4:00 PM Toad
18. Hourly Tour Saturday, October 17, 2026 at 4:00 PM Longfellow House - Washington's Headquarters NHS
19. Around The Table Session Saturday, October 17, 2026 at 5:00 PM The Burren
20. A Jazzy Author Talk Saturday, October 17, 2026 at 7:00 PM Little Crêpe Café
21. Indoor Movie Night: Hocus Pocus Saturday, October 17, 2026 at 7:00 PM CambridgeSide
22. Irish Session with Rotating Local Musicians Saturday, October 17, 2026 at 7:00 PM McCarthy's
23. KaBeatles Saturday, October 17, 2026 at 10:00 PM The Plough and Stars
24. The Storrow Drivers Saturday, October 17, 2026 at 10:30 PM Toad
25. Hourly Tour Sunday, October 18, 2026 at 10:00 AM Longfellow House - Washington's Headquarters NHS
26. Express Tour Sunday, October 18, 2026 at 10:30 AM Longfellow House - Washington's Headquarters NHS
27. Hourly Tour Sunday, October 18, 2026 at 11:00 AM Longfellow House - Washington's Headquarters NHS
28. Evan Greer Sunday, October 18, 2026 at 11:00 AM Statue Park
29. 250th Deep Dive Tour: Headquarters of a Revolution Sunday, October 18, 2026 at 11:30 AM Longfellow House - Washington's Headquarters NHS
30. Irish Session Sunday, October 18, 2026 at 12:00 PM The Druid
31. Hourly Tour Sunday, October 18, 2026 at 12:00 PM Longfellow House - Washington's Headquarters NHS
32. Scottish Brunch Sunday Session with Adam Hendey and Friends Sunday, October 18, 2026 at 12:00 PM McCarthy's
33. Hourly Tour Sunday, October 18, 2026 at 1:00 PM Longfellow House - Washington's Headquarters NHS
34. Family Activities at the Harvard Museum of the Ancient Near East Sunday, October 18, 2026 at 1:00 PM Harvard Museum of the Ancient Near East
35. Bluegrass Brunch Sunday, October 18, 2026 at 1:00 PM An Sibin
36. The Boston Cowboy Balladeers Sunday, October 18, 2026 at 2:00 PM State Park
37. Hourly Tour Sunday, October 18, 2026 at 2:00 PM Longfellow House - Washington's Headquarters NHS
38. The Moonbellies Sunday, October 18, 2026 at 2:30 PM Aeronaut Brewing
39. 250th Deep Dive Tour: Headquarters of a Revolution Sunday, October 18, 2026 at 2:30 PM Longfellow House - Washington's Headquarters NHS
40. Irish Session Sunday, October 18, 2026 at 3:00 PM The Burren
41. Hourly Tour Sunday, October 18, 2026 at 3:00 PM Longfellow House - Washington's Headquarters NHS
42. Express Tour Sunday, October 18, 2026 at 3:30 PM Longfellow House - Washington's Headquarters NHS
43. Hourly Tour Sunday, October 18, 2026 at 4:00 PM Longfellow House - Washington's Headquarters NHS
44. ONCE Upon A Time: indie music series Sunday, October 18, 2026 at 4:00 PM Redbones
45. Dennis Brennan Band Sunday, October 18, 2026 at 4:00 PM Toad
46. Nuala O'Donovan, Sidebody Sunday, October 18, 2026 at 4:00 PM Davis Square Plaza
47. GottaBal! Dance Sunday, October 18, 2026 at 4:00 PM Arts at the Armory
48. Adam Sherman Sunday, October 18, 2026 at 4:00 PM The Plough and Stars
49. Boston Modern Big Band Sunday, October 18, 2026 at 5:00 PM Sally O'Brien's
50. Old Timey Session Sunday, October 18, 2026 at 6:00 PM The Burren
51. Fireside Chat with Daisy Rockwell Sunday, October 18, 2026 at 6:00 PM Cambridge Common House
52. Dana Maiben and Vivian Montgomery | An Outburst of Improvisors Sunday, October 18, 2026 at 7:00 PM Longy School of Music
53. Irish Session with Jimmy Kelly and friends Sunday, October 18, 2026 at 7:00 PM McCarthy's
54. Sunday Sessions Sunday, October 18, 2026 at 8:00 PM The Cantab Lounge
55. Crush Death, Ivy Boy Sunday, October 18, 2026 at 8:00 PM State Park
56. FREAKSHOW: a trans-punk halloween showcase" Sunday, October 18, 2026 at 9:00 PM The Jungle
57. Dub Apocalypse Sunday, October 18, 2026 at 9:30 PM Sally O'Brien's
58. Hourly Tour Monday, October 19, 2026 at 10:00 AM Longfellow House - Washington's Headquarters NHS
59. Express Tour Monday, October 19, 2026 at 10:30 AM Longfellow House - Washington's Headquarters NHS
60. Hourly Tour Monday, October 19, 2026 at 11:00 AM Longfellow House - Washington's Headquarters NHS

496 more on the full calendar.