Mojiko Retro is the preserved port district at the northern tip of Kyushu, a compact area of red-brick warehouses and white-stucco trading buildings on the waterfront. The 1914 Mojiko Station — a two-storey wooden structure modelled on a French chateau — is the centrepiece and was Japan's first Important Cultural Property railway station. The 1912 Customs House, the 1921 old Osaka Shosen building, and the former Mitsui Club (where Einstein stayed during his 1922 Japan tour) cluster within a few hundred metres along the harbour.
The district is small enough to walk in two hours. Cafes occupy the ground floors of most of the historic buildings; in good weather an open-air market runs along the quayside. A tourist train called the Shiokaze runs along the seafront on weekends. Combine the visit with the short ferry crossing to Shimonoseki on Honshu, visible across the strait.