Seoul City Hall, Seoul

Seoul City Hall serves as the seat of the Seoul Metropolitan Government-the administrative heart of South Korea’s capital. The complex comprises two distinct structures: the original 1926 neoclassical building, now transformed into the Seoul Metropolitan Library, and a sleek modern extension, opened in August 2012, whose design echoes the curved eaves of traditional Korean houses.

The complex dedicates about 62% of its space to government offices and 38% to public spaces. Inside, visitors are greeted by a seven-story “Green Wall” vertical garden, adorned with over 70,000 plants across 14 species, recognized as possibly the largest indoor vertical garden globally. The entrance lobby also features a captivating media wall, alongside digital aquariums and public art installations, including the symbolic “Meta Epic: SeoBeol”, which reflects Seoul’s 2,000-year history through light, myth, and hope motifs.

The Tong‑Tong Tour-available both on-site and online-offers a rich guided experience through the entire complex. Without prior booking, visitors can explore the main building’s public spaces, the Seoul Metropolitan Library’s historic rooms like the former mayor’s office and archival services, and the Seoul Citizens’ Hall exhibits. Select tours include the Seoul Outdoor Library in Seoul Plaza during its season.

Strategically placed in front of the complex, Seoul Plaza brings the space to life with seasonal activities-festivals, markets, outdoor libraries in warmer months, and ice rinks in winter. The rooftop garden atop the old building and social spots like the Sky Plaza Café and a robot café offer scenic views and relaxed atmospheres-all accessible without admission fees.

Beyond its architectural marvels and civic amenities, Seoul City Hall remains a fully functional government center, hosting the mayor’s office, various bureaus, and departments that oversee public education, libraries, sanitation, welfare, public safety, and recreation across the metropolis.