Boston will happily charge you $30 for a museum ticket, but plenty of the good stuff is free: a warship, the State House, a landmark library and Harvard's arboretum. Our single best tip: if you're a Massachusetts resident, put Monday, Oct. 12 on the calendar, when both the MFA and the ICA open their doors for free (details below).
Everything here was checked on the official site as of Sept. 2026. Hours shift with the seasons, so give the link a quick look before you head out.
Parks & outside
1. Boston Common
The city calls it "America's oldest park," founded in 1634. Today it's frisbees, protests and people eating lunch on benches. Very democratic.
Free · Park Street (Red/Green) · Open 365 days a year
2. The Public Garden
Across Charles Street, the Public Garden was the first public botanical garden in America, established in 1837. It's also home to the Make Way for Ducklings statue, which small children will sit on whether you like it or not.
Free · Arlington (Green) · The Friends of the Public Garden list 6:30 a.m.–11 p.m. as of Sept. 2026
3. Commonwealth Avenue Mall
The third park in that Common, Garden and Mall trio is a long, tree-lined strip down the middle of Comm Ave. It's the best free people-and-dog-watching stroll in Back Bay.
Free · Arlington or Copley (Green) · Open year-round
4. Arnold Arboretum
Harvard's arboretum in Jamaica Plain is "Always Free" and open sunrise to sunset every day. Fall color here is the real deal. From the train, exit Forest Hills through the door marked "Arnold Arboretum" and walk up the Arborway.
Free · Forest Hills (Orange) · Grounds sunrise–sunset; visitor center 10 a.m.–4 p.m. daily, as of Sept. 2026
History you can walk
5. The Freedom Trail, on your own
The 2.5-mile Freedom Trail follows a red brick line through downtown, the North End and Charlestown. Walking it costs nothing, though some sites along it charge admission. Skip the paid guide and use the free NPS audio tour: 23 stops, about 94 minutes of audio, in English, Spanish or French.
Free · Park Street (Red/Green) · Any time
6. Black Heritage Trail
This roughly 1.5-mile trail on the North Slope of Beacon Hill links sites of Boston's African American community from the late 1700s through the 1800s. There's no fee, and the NPS app has a self-guided version. The free ranger tours ran through Sept. 27 this year, so for now it's you and your phone.
Free · Park Street (Red/Green) · Self-guided any time
7. Granary Burying Ground
Paul Revere, Samuel Adams, John Hancock and five Boston Massacre victims, including Crispus Attucks, are all buried here. So are Benjamin Franklin's parents, under a 25-foot obelisk. It's a lot of famous people for a lot this small.
Free · Park Street (Red/Green) · About 9 a.m.–4 p.m. daily, as of Sept. 2026
8. Faneuil Hall's Great Hall
The National Park Service says there are no fees at Faneuil Hall. Head to the second floor for the Great Hall, where rangers give short talks Tuesday through Sunday at 10:30, 11:30, 12:30, 1:30, 2:30 and 3:30.
Free · Government Center (Blue/Green) · Tue–Sun talks, as of Sept. 2026
9. Massachusetts State House
Tours are free and last about 40 minutes. Enter at the General Hooker Entrance on Beacon Street and go through security. Guided tours run weekdays 10 a.m.–3:30 p.m. and need a reservation (617-727-3676). Small groups can walk in and grab self-guided materials in Doric Hall.
Free · Park Street (Red/Green) · Weekdays only, closed holidays
10. USS Constitution
Old Ironsides is free to board, first come, first served. Adults need a federal or state photo ID; under-18s don't, but everyone goes through security. Posted hours differ between the museum and the Navy, so check before you go.
Free · Charlestown Navy Yard · Hours vary, check before you go
11. USS Constitution Museum
Right next to the ship, the museum runs on suggested pricing, and its "Reduced" tier goes all the way down to free. Pay what you can, no side-eye.
Free–$25 suggested · Charlestown Navy Yard · Open daily 9:30 a.m.–5 p.m., as of Sept. 2026
12. Longfellow House–Washington's Headquarters
Over in Cambridge, the Longfellow House–Washington's Headquarters is an NPS site with no entrance fee and free tours. The inside is guided-tour only and seasonal, so check the NPS page. The grounds are free to wander.
Free · Harvard (Red), a short walk to 105 Brattle St. · Check tour dates
Museums & culture that are free (always or on certain days)
13. Boston Public Library, Central Library
The Copley Square library is free to walk into, and all visitors are welcome to view the art and architecture. Weekly guided art and architecture tours are free too, but need advance registration. Find the courtyard, then go sit in Bates Hall and feel smarter immediately.
Free · Copley (Green) · Mon–Thu 9 a.m.–8 p.m., Fri–Sat 9 a.m.–5 p.m., Sun 11 a.m.–5 p.m., per the BPL as of Sept. 2026
14. Harvard Art Museums
"Admission is free to all visitors every day." That's the whole pitch, and it's a great one.
Free · Harvard (Red) · Tue–Sun 10 a.m.–5 p.m. per the museum's site, check before you go
15. MIT List Visual Arts Center
The List Center is "free and open to all", and MIT's public art collection, with work by Calder and Sol LeWitt, is scattered around campus for you to hunt down.
Free · Kendall/MIT (Red) · Tue–Sun noon–6 p.m., till 7 p.m. Wed–Thu, as of Sept. 2026
16. Commonwealth Museum
The state's archives museum at Columbia Point shows off historic documents, and "Admission is Free." Parking is free too, which in Boston is its own attraction.
Free · JFK/UMass (Red), then the free UMass shuttle · Weekdays 9 a.m.–5 p.m.
17. ICA Free Thursday Nights
The Institute of Contemporary Art is free for everyone Thursdays from 5 to 9 p.m., and always free for visitors 18 and under. It's also free on several holidays, including Indigenous Peoples' Day.
Free Thu 5–9 p.m. (adults $20 otherwise) · Courthouse (Silver Line) · As of Sept. 2026
18. MFA open house, Oct. 12
The Museum of Fine Arts' Indigenous Peoples' Day open house is Monday, Oct. 12, 2026, 10 a.m.–5 p.m., free with a valid Massachusetts zip code. Kids 6 and under are always free, and the next resident open house is MLK Day, Jan. 18, 2027.
Free for Mass. residents Oct. 12 (adults $30 otherwise) · Museum of Fine Arts (Green E) · As of Sept. 2026
Water & views
19. The Harborwalk
Boston Harbor Now counts nearly 40 miles of publicly accessible waterfront. Start at the Aquarium and pick a direction. You'll run out of legs before you run out of path.
Free · Aquarium (Blue) · Any time
20. Castle Island & Fort Independence
South Boston's waterfront park is open sunrise to sunset with free parking. The Castle Island Association gives complimentary tours of the granite fort, and the 2026 schedule lists noon–3 p.m. on Sundays after Labor Day, Oct. 4, Columbus Day weekend (Oct. 10–12) and Oct. 24–25. Tours are weather-permitting.
Free · 2010 Day Blvd., South Boston; use the MBTA trip planner · Sunrise–sunset
21. Bunker Hill Monument
Free admission, and the view from the top is yours if you climb 294 stairs in a tight spiral. Only 25 people are allowed inside at once, and it can close for weather. Your calves will file a complaint.
Free · Community College (Orange) · Check NPS hours
Markets & only-in-Boston extras
22. SoWa Open Market
The South End's Sunday market of makers and food trucks lists "Cost: Free". The 2026 season runs Sundays through Nov. 15, 11 a.m.–5 p.m. Browsing is free; the dumplings are not.
Free entry · 500 Harrison Ave., South End · Sundays through Nov. 15, as of Sept. 2026
23. Boston Public Market
An indoor market of New England vendors next to Haymarket, open every day. Wandering is free.
Free to browse · Haymarket (Orange/Green) · Sun–Tue 8 a.m.–6 p.m., Wed–Sat 8 a.m.–8 p.m., as of Sept. 2026
With kids
24. Greenway fountains
The Rose Kennedy Greenway's fountains, including the Rings Fountain, are free and typically on from late May through mid-October, 9 a.m.–11 p.m. Pack a towel. The carousel next door costs $4 a ride, so steer wisely.
Free · Aquarium (Blue) · Through about mid-October
25. BPL Children's Library
On the second floor of the Central Library, the Children's Library has story times for ages 0–7, art afternoons and early-literacy stations that need no card. A rainy-day lifesaver.
Free · Copley (Green) · Check BPL department hours
For dated freebies like outdoor movies and festivals, see our weekly things-to-do picks. And if the Freedom Trail left you wanting more, try one of our free neighborhood walks.
The short version
- Best free day: Monday, Oct. 12. The MFA (Mass. residents) and the ICA are both free.
- Best free history: Freedom Trail with the free NPS audio tour, plus USS Constitution (bring photo ID).
- Always-free museums: Harvard Art Museums, MIT List Center, Commonwealth Museum.
- Best free night out: ICA on Thursdays, 5–9 p.m.
- Best free outdoors: Arnold Arboretum for fall color, Castle Island for harbor air.
- Seasonal alert: SoWa ends Nov. 15, the Greenway fountains shut off around mid-October.
Sources
- Boston Common, City of Boston
- Public Garden, City of Boston
- Park FAQ, Friends of the Public Garden
- Visit, Arnold Arboretum
- Forest Hills Gate, Arnold Arboretum
- Walk the Freedom Trail, National Park Service
- Freedom Trail Audio Tour, National Park Service
- Plan Your Visit, Boston African American NHS
- Granary Burying Ground, City of Boston
- Fees & Passes, Boston National Historical Park
- Visit Historic Faneuil Hall, National Park Service
- State House Tours, Secretary of the Commonwealth
- Schedule a Tour, State House Tours Division
- Hours + Admission, USS Constitution Museum
- Fees & Passes, Longfellow House–Washington's Headquarters NHS
- Art & Architecture Tours, Boston Public Library
- Central Library in Copley Square, Boston Public Library
- Children's Library, Boston Public Library
- Visit, Harvard Art Museums
- Visit, MIT List Visual Arts Center
- Visit the Commonwealth Museum, Secretary of the Commonwealth
- Visit, ICA Boston
- Visit, Museum of Fine Arts, Boston
- Indigenous Peoples' Day Open House, MFA
- Free and Discounted Admission, MFA
- Future Harborwalk, Boston Harbor Now
- Castle Island, Pleasure Bay, M Street Beach and Carson Beach, Mass.gov
- Learn more about Castle Island, Mass.gov
- Castle Island & Fort Independence Tours and Activities 2026, Castle Island Association via Mass.gov
- Bunker Hill Monument, National Park Service
- SoWa Open Market, SoWa Boston
- Visit, Boston Public Market
- Fountains, Rose Kennedy Greenway
- Greenway Carousel, Rose Kennedy Greenway
Prices, hours and schedules change. Tap through to the official source before you go, and if we got something wrong, tell us. We log every fix on our corrections page.
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