Twenty-Five Foot Space Simulator
Added to the National Register in 1985, and a National Historic Landmark.

The record
| Property type | Structure |
| Address | Jet Propulsion Laboratory, Pasadena, CA |
| County | Los Angeles County |
| Listed | Oct 3, 1985 |
| Listed for | Engineering |
| Level of significance | National |
| Reference number | 85002812 |
| Designations | National Historic Landmark |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | Jet Propulsion Laboratory, Pasadena, CA |
| Coordinates | 34.2027° N, 118.1729° W · Directions ↗ |
| Also in Pasadena | 131 listed places in Pasadena → · walking tours → |
Explore
Map
Nearby in Los Angeles County
Public land around it
| Angeles National Forest ↗National Forest, U.S. Forest Service | Inside the boundary706,719 acres |
Wilderness Atlas publishes a centroid and an acreage for each unit, not a boundary line. Distance here is measured to a circle of the same area drawn around that centroid, so treat it as roughly right rather than surveyed.
Local history books for Pasadena
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Guidebooks to historic places in California
Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
When was Twenty-Five Foot Space Simulator listed on the National Register?
Oct 3, 1985. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Where is Twenty-Five Foot Space Simulator?
Jet Propulsion Laboratory, Pasadena, Los Angeles County, California.
Source: National Park Service
Where is the nomination form for Twenty-Five Foot Space Simulator?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Is there a wildfire near Twenty-Five Foot Space Simulator right now?
1 active incident within 50 miles as of 2026-10-17, nearest Bryson, 39 miles away.
Source: Map
Sources
Name, location, type and dates come from the National Register office's spreadsheet of listed properties, because the Park Service's spatial data does not carry this listing. The map point comes from Wikidata. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 85002812. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place.