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.

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 / January 1
  • Martin Luther King, Jr. Day / January 18
  • Presidents’ Day / February 15
  • Patriots’ Day / April 18
  • Memorial Day / May 30
  • Independence Day / July 4
  • Labor Day / September 5
  • Thanksgiving holiday / November 23 & 24
  • Christmas holiday / December 24–26

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

  • Annual Meeting / June 6
  • Indigenous Peoples’ Day / October 10 (Opening Our Doors)
  • 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.
Print Friendly