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As of March 10, 2020 tours of the National Library of Medicine are temporarily cancelled.

Explore NLM through our new NLM Welcome Page.

NLM Visitors Center and Tours


The NLM Visitor Center staff offer tours of the Library daily at 1:30 p.m on weekdays, Monday through Friday.

The one-hour tour, which originates in the NLM Visitor Center (Room 127, Building 38A), includes:

  • a video providing an overview of NLM programs and services;
  • brief demonstrations of the library’s online information resources; and
  • a walking tour that includes the computer room, reading room, exhibition area, and the History of Medicine Division.

Request A Tour

Reservations for the regular 1:30 p.m. tour are not required for groups of five or fewer.

To book a 1:30 p.m. tour for six or more or to request a special group tour at other times, please contact NLM Communications at

Directions to the NLM Visitor Center

The National Library of Medicine is on the campus of the National Institutes of Health in Bethesda, Maryland. Visitors must enter the NIH campus through the NIH Visitor Gateway Center, which is located steps from the Medical Center station on Metro’s Red Line. Pay parking is available near the Gateway Center and in front of the Library (NIH Building 38).

Visitors must provide a government-issued photo ID to obtain an NIH visitor pass. (Note: The NIH will not accept as identification state driver's licenses that are not REAL ID Act compliant. See NIH Campus Access and Security for more details.)

The National Library of Medicine (NIH Building 38) and the Lister Hill Center (Building 38A) are a short walk from the Gateway Center. Signs will direct you as you leave the Gateway Center building.

See NIH Visitor Information for campus maps and to learn more.

NLM Tour Program Update

As of March 10, 2020

Following Office of Personnel Management guidance on Coronavirus Disease (COVID-19), visitor tours at the National Library of Medicine are temporarily cancelled. This page will be updated when tours resume.

If you have questions, please email NLM Communications at

Last Reviewed: November 17, 2021