Plan your visit

The Mary Baker Eddy Library
200 Massachusetts Avenue
Boston, MA 02115

Hours of Operation, Directions, Parking

10:00 a.m.–4:00 p.m.
Closed Mondays and Holidays

Directions and Parking Information

Research & Reference Services Hours

12:00 p.m.–4:00 p.m.
The First Saturday of February, May, August, and November.

PLEASE NOTE: Due to construction, our Research Room will be closed to visitors from Tuesday, January 31 through Monday, May 22. There will be no 2017 First Saturday openings in February or May.

Call 617-450-7218 or e-mail
More information about Research & Reference Services  

Holiday Hours

The Mary Baker Eddy Library will be closed on the following dates:

  • New Year’s Day
  • Martin Luther King, Jr. Day
  • Presidents’ Day
  • Patriots’ Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving holiday/November 22-23
  • Christmas holiday/December 24-25

The Mary Baker Eddy Library will be open on the following dates:

  • Annual Meeting of The Mother Church/June 5
  • Indigenous Peoples’ Day/October 9
  • Veterans Day/November 11
  • Day after Thanksgiving/November 24
  • New Year’s Eve/December 31

Please call the Library for exact information, including operating hours, before visiting on a specific holiday.

Admission Fees

Admission required for Mapparium. All other spaces in the Library are free, including Research & Reference Services.

  • General Admission — $6.00
  • Seniors (62+), Students & Military (with ID), and Youth (6-17) — $4.00
  • Children 5 years and under — Free
  • Tour Groups (15 or more) — $4.00/General Admission, $3.00 Youth, Student, and Seniors. For more information, see Group Visits.


The Mapparium® is available for view on a tour only. Tours of the Mapparium run every 20 minutes, lasting 15-20 minutes. The first tour of the day starts at 10:20 a.m., and the last tour starts at 4:00 p.m.


  • Library entrances are street accessible.
  • Library exhibits are wheelchair accessible. Elevators are located in the Publishing House Lobby and provide access to all spaces.
  • The Library provides wheelchairs for use on a first-come, first-served basis, free of charge—please ask for assistance at reception.
  • Companions for manual wheelchair users and for those who require assistance in reading wall text and/or object labels are admitted free of charge.
  • Baby-changing stations are located in the Library’s second floor restroom.
  • Assistive listening devices (headsets and neckloops) are available at the reception desk.
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