Please be advised that the Open House program at Dinosaur Park scheduled for Saturday, July 4, 2026, has been canceled due to the heat advisory and the potential for thunderstorms.

We apologize for any inconvenience and appreciate your understanding as we prioritize the safety of our visitors and staff.

With extreme heat advisories in effect, M-NCPPC, Department of Parks and Recreation in Prince George’s County offers designated cooling centers for extended relief—open during regular hours; please confirm hours before visiting. Click here for more information.

Event Information

Name: Hidden Spaces Tour
Start: 2026-04-12T15:30:00-05:00
End: 2026-04-12T17:00:00-05:00

Bird's-eye view of a woman descending a narrow staircase in a historic building. A staff member stands behind her, holding open the hidden trap-door that leads to the staircase.

Hidden Spaces Tour

Sunday, April 12, 2026
3:30 pm - 5:00 pm

Ticket Price: $$10 Residents & Members of Montpelier House Museum, $20 Non-resident
Age: 16 and up

Event Category: Black History, Black History Month, History, Tours

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Montpelier Historic Site & Museum

301-377-7817 montpeliermansion@pgparks.com 9650 Muirkirk Road
Laurel, MD

Add to Calendar Sunday, April 12, 2026 3:30 pm 04/12/2026 5:00 pm America/New_York Hidden Spaces Tour Learning about architecture and history, active engagement, walking, and staying fit. <span class="tribe-address"> </span>

Learning about architecture and history, active engagement, walking, and staying fit.