Daejeon looks new, but the ridges above it hold Baekje-era stone walls from the 5th century, its old downtown is a rare surviving grid of 1930s Japanese colonial architecture, and its riverbanks mark the July 1950 battle that cost a US general his freedom.
Baekje-era mountain fortress on Gyejoksan ridge, Historic Site No. 355. The restored stone rampart runs roughly 1,037m around the summit at 420m, with gate remains and a beacon platform. Open access, unstaffed; free. Steep 40-minute climb from Jangdong trailhead.
Treasure No. 209, built 1616 by scholar Song Jun-gil's clan and rebuilt 1701 — one of Korea's oldest surviving byeoldang pavilions. The Eunjin Song clan village around it preserves Joseon-period hanok, walled courtyards and a lotus pond. Free entry, daily 09:00–18:00.
The academy compound of Song Si-yeol (1607–1689), the Noron faction leader whose Confucian orthodoxy shaped late Joseon politics. Namganjeongsa study hall dates to 1683; the park holds his shrine, lecture halls and a memorial hall of his writings. Open 09:00–18:00, closed Mondays.
A compact Baekje ring-fort on Bomunsan, Daejeon Monument No. 10, with about 300m of reconstructed wall and a rebuilt gate tower at 406m. Excavations turned up Baekje roof tiles and Silla pottery, evidence the ridge changed hands during the 7th-century wars.
Opened 1985 on 322 hectares in Yuseong, resting place of some 100,000 war dead, independence activists and police. The Memorial Tower rises 43m; separate sections hold Korean War, Vietnam and Cheonan sinking casualties. Open 06:00–18:00, free, free shuttle inside grounds.
Daejeon existed as a hamlet until the Gyeongbu Line opened in 1904 and the Japanese-built station created the city outright. The plaza holds the Ppalgan Mahura monument to the 1959 song 'Daejeon Blues', still played over the platform at departure.
Around 40 surviving Japanese railway-company houses from the 1920s–30s, built for Gyeongbu Line staff — the densest colonial-era gwansa cluster left in Korea. Registered heritage; several converted to cafés while others stand derelict amid redevelopment disputes.
A 1932 red-brick and stone modernist building, Registered Cultural Heritage No. 18, that served as the provincial seat until the 2012 move to Hongseong. Its stair hall and council chamber survive intact; the front lawn hosts the Daejeon Culture Foundation's evening programmes.
On 20 July 1950 the US 24th Infantry Division lost the city here and Major General William Dean was captured — the highest-ranking American POW of the war. Riverside markers along the Gapcheon and the Chunghon Tower record the delaying action that bought Busan time.
The pre-war Japanese commercial grid behind Daejeon Station, where 1930s two-storey shophouses with tiled parapets now sell hardware, herbs and secondhand tools. The old Chōsen Sanitary Ceramics building and several kura-style warehouses still stand on the back lanes.
Housed beside Uam Historical Park in Gao-dong, this municipal museum traces Daejeon from Baekje burial goods through Joseon land registers to 20th-century urban expansion, with excavated material from Gyejoksanseong. Open 09:00–18:00, closed Mondays, free.
The 1962 Daeheung-dong cathedral, Registered Heritage No. 643, is a rare Korean-built modernist church with a folded concrete roof; the surrounding lanes held the mission schools and clinics that served refugees flooding Daejeon after 1950.