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Haemieupseong 서산 해미읍성

About

Haemieupseong (Korean: 해미읍성; Hanja: 海美邑城; lit. 'Haemi Fortress') is a Joseon-era Korean fortress in what is now Haemi-eup, South Chungcheong Province, South Korea. Haemieupseong was built between 1417 and 1421 during the Joseon period. In January 1963, it was listed as South Korea's Historical Site No.

Description via Wikipedia (lead extract) · name cross-verified Wikidata + Wikipedia.

Verified facts

Haemieupseong (서산 해미읍성) — verified Korean place / attraction.

Details

• Heritage status: Historic sites of South Korea
• Name: Haemieupseong
• Location: Haemi-eup, South Chungcheong Province, South Korea
• Period: Joseon-era
• Founded: 1417
• Completed: 1421
• Type: fortress
• Designation: 사적 제116호
• Designated Date: 1963년 1월 21일

Location

36.7128, 126.549 · View on map →

Source reconciliation

• Wikidata lists the Korean name as 해미읍성; KoreaAPI uses 서산 해미읍성 (chosen by source authority).
• OpenStreetMap lists the English name as Haemieupseong Fortress; KoreaAPI uses Haemieupseong (chosen by source authority).

Independent sources disagreed here — shown, not hidden.

Q&A — what agents ask

Cross-checked by 3 source(s)

• Wikidata — structured open knowledge base · view ↗
• Wikipedia — encyclopedic article · view ↗
• OpenStreetMap — open geographic database

Verification history

Verified & tracked since 2026-08-18 · 5 verified snapshots.

Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("place:haemieupseong").

Verified badge

Embed it — the badge shows this entity’s verification tier + Skill Score and links back here (a “via KoreaAPI” citation):

<a href="https://aiagentlabs.co.kr/artist/haemieupseong.html"><img src="https://aiagentlabs.co.kr/badge/haemieupseong.svg" alt="Verified by KoreaAPI"></a>

[![Verified by KoreaAPI](https://aiagentlabs.co.kr/badge/haemieupseong.svg)](https://aiagentlabs.co.kr/artist/haemieupseong.html)

Nearby verified spots

• Toksan-doripkongwon · 8.5 km
• Toksandae-onch'on · 9.5 km
• Historic Site Related to Yun Bong gil in Yesan · 9.6 km
• Deoksan Oncheon · 10.2 km
• Seosan City Stadium · 13.9 km
• Chŏn-do · 19.8 km

Distances from verified coordinates (Wikidata P625), great-circle.