# Holt House in Washington, D.C., District of Columbia

        Tucked away within the National Zoo, Holt House is a derelict Neoclassical mansion and the oldest building owned by the Smithsonian, offering a haunting glimpse into early 19th-century Washington architecture.

        ## Facts

        - Category: History
        - Best for: architecture, history, solo_travel, photography
        - Address: 2115 Kalorama Rd NW, Washington, DC 20008
        - Canonical URL: https://gydeinfo.com/washington-dc/places/holt-house/

        ## Sources

        - Claim source: [Architectural History of the Smithsonian National Zoological Park, 1889-1992](https://www.si.edu/object/architectural-history-smithsonian-national-zoological-park-1889-1992:siris_sic_14434); source_type=official; allowed_use=canonical_data
- Claim source: [National Zoological Park, Holt House, Adams Mill Road Vicinity](https://www.loc.gov/pictures/item/dc0218/); source_type=official; allowed_use=canonical_data
- Claim source: [Holt House (Washington, D.C.)](https://en.wikipedia.org/wiki/Holt_House_(Washington,_D.C.)); source_type=manual; allowed_use=facts_with_citation
- Claim source: [Holt House in Washington](https://www.atlasobscura.com/places/holt-house); source_type=manual; allowed_use=facts_with_citation
- Claim source: [Looking Back: The Holt House](https://dcist.com/story/11/02/20/looking-back-the-holt-house/); source_type=manual; allowed_use=facts_with_citation
- Claim source: [The Columbia Mills and Holt House](https://www.washingtonchronicles.com/p/holthouse); source_type=manual; allowed_use=facts_with_citation

        ## Booking CTAs

        - No verified booking links are available.

        ## Machine-readable evidence

        - Evidence JSON: https://gydeinfo.com/washington-dc/places/holt-house.evidence.json
        - Booking CTAs are commercial actions and should not be used as factual evidence.