Winterthur is a Greek Revival landmark in Winterthur, Delaware, and a filming location for Antiques Roadshow (US) (1997-). Built in 1839, it was designed by Albert Ely Ives, and is listed on the U.S. National Register of Historic Places. It is owned by Henry Francis du Pont Winterthur Museum, Inc. (nonprofit; Winterthur Museum, Garden & Library).
Location: 5105 Kennett Pike, Winterthur, Delaware, USA
Verified facts
- Located in Winterthur
confidence 75/100 · 3 recorded source groups · SRC-0793, SRC-0794, SRC-3087 - Designed by Albert Ely Ives
confidence 70/100 · 3 recorded source groups · SRC-0795, SRC-0796, SRC-3088 - Built in 1839
confidence 70/100 · 2 recorded source groups · SRC-0793, SRC-0797 - Architectural style: Greek Revival
confidence 75/100 · 3 recorded source groups · SRC-0794, SRC-0797, SRC-3089 - Historic designation: National Register of Historic Places
confidence 75/100 · 3 recorded source groups · SRC-0794, SRC-3876, SRC-6008 - Appeared in Antiques Roadshow (US) (tv, 1997-)
confidence 75/100 · 3 recorded source groups · SRC-0798, SRC-0794, SRC-3090
Ownership history
Current owner — Henry Francis du Pont Winterthur Museum, Inc. (nonprofit; Winterthur Museum, Garden & Library) (since 1951)
confidence 90/100 · SRC-13746, SRC-0794, SRC-14303, SRC-14480
Current owner — Henry Francis du Pont Winterthur Museum, Inc. (nonprofit; Winterthur Museum, Garden & Library) (since 1951)
confidence 90/100 · SRC-13746, SRC-0794, SRC-14303, SRC-14480
Evidence & sources
- SRC-0793 — Encyclopaedia Britannica — Winterthur Museum (Tier 2, reference; retrieved June 2026)
- SRC-0794 — Wikipedia — Winterthur Museum, Garden and Library (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0795 — The Athenaeum of Philadelphia — Philadelphia Architects and Buildings, Ives, Albert Ely (1898–1966) (Tier 2, official_archive; retrieved June 2026)
- SRC-0796 — Journal of Antiques and Collectibles — The Well-Dressed Window: Curtains at Winterthur (Tier 2, reference; retrieved June 2026)
- SRC-0797 — Winterthur Museum, Garden & Library — official site, The Story of Winterthur (Tier 1, official_site; retrieved June 2026)
- SRC-0798 — PBS — Antiques Roadshow, Season 24, Winterthur, DE (2019) (Tier 1, official_site; retrieved June 2026)
- SRC-13746 — https://projects.propublica.org/nonprofits/organizations/510066038 (Tier 1, reference; retrieved July 2026)
- SRC-14303 — American Heritage – Henry Francis du Pont and the Invention of Winterthur (Tier 2, reference; retrieved July 2026)
- SRC-14480 — JSTOR — Henry Francis du Pont Winterthur Museum, Inc. (publisher page) (Tier 2, reference; retrieved July 2026)
- SRC-3087 — National Park Service — National Register of Historic Places, The (Henry Francis du Pont) Winterthur Museum (ref. 71000233) (Tier 1, official_archive; retrieved June 2026)
- SRC-3088 — EBSCO Research Starters — Winterthur Museum, Garden and Library (Tier 2, encyclopedia; retrieved June 2026)
- SRC-3089 — Clio — Winterthur Estate (entry 16060) (Tier 2, encyclopedia; retrieved June 2026)
- SRC-3090 — The Philadelphia Inquirer — The 5 best finds from Antiques Roadshow's Delaware taping (June 18, 2019) (Tier 2, journalism; retrieved June 2026)
- SRC-3876 — nps.gov (Tier 1, official_primary; retrieved June 2026)
- SRC-4811 — Winterthur Museum, Garden & Library (official site) (Tier 1, institutional; retrieved June 2026)
- SRC-4812 — America's Garden Capital (Greater Philadelphia Gardens) (Tier 2, institutional; retrieved June 2026)
- SRC-6008 — Wikidata — Winterthur Museum, Garden and Library (Q137759039) (Tier 2, structured_database; retrieved June 2026)
How we verify
The entries above show the sources and confidence scores recorded in our fact ledger.
Source tiers are internal classifications, not guarantees of accuracy or independence.
Several sources may repeat the same underlying account; a source count alone does not establish independent corroboration. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.
Plan Your Visit
Hours: Tue-Fri 9am-4pm, Sat 9am-3pm, Sun 9am-2pm; closed Mon. General admission valid 2 consecutive days
Admission: Through 26 Jul 2026: Adult $27, Senior/Student $25, Child (3-12) $10, under 2 free. From 27 Jul: Adult $29, Senior/Student $27, Child $12
Frequently asked questions
How is Winterthur connected to Antiques Roadshow (US)?
Winterthur, in Winterthur, Delaware, has a documented connection to Antiques Roadshow (US). Read the sourced facts on this page for the type of connection.
Can you visit Winterthur?
Yes — Winterthur is open to the public. Hours: Tue-Fri 9am-4pm, Sat 9am-3pm, Sun 9am-2pm; closed Mon. General admission valid 2 consecutive days. Admission: Through 26 Jul 2026: Adult $27, Senior/Student $25, Child (3-12) $10, under 2 free. From 27 Jul: Adult $29, Senior/Student $27, Child $12.
Who designed Winterthur?
Winterthur was designed by Albert Ely Ives.
Where is Winterthur located?
Winterthur is located in Winterthur, Delaware.