{"nrhp_refnum":"100006045","name":"Mechanical Laboratory and Power House","other_names":["Robert and Katherine Maxfield Hall"],"category":"building","location":{"address":"6100 Main St.","address_restricted":false,"city":"Houston","county":"Harris County","state":"TX","lat":29.720807000000036,"lon":-95.39995999999996,"geom_source":"nps_gis"},"listed_date":"2021-01-14","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":null,"photo":{"url_800":"https://nationalhistoricalregister.com/media/100006045/09539cb4c0-800.webp","url_1600":"https://nationalhistoricalregister.com/media/100006045/09539cb4c0-1600.webp","licence":"CC BY-SA 4.0","author":"Jim Evans","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Rice_University_Mechanical_Laboratory_and_Power_House.jpg\" rel=\"noopener\">Jim Evans</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Rice_University_Mechanical_Laboratory_and_Power_House.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":null,"wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q110000343"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/harris-county/mechanical-laboratory-and-power-house-100006045/"}