Kyoto National Museum
There are many Kofun in Keisen; Ōzuka Kofun, near Keisen Station, is designated as a site of special historic interest (one of only two of its kind in Japan), and has its own museum. Ozuka was built in the 6th century AD as a decorated mound tomb. It was rediscovered in 1934, and the artifacts found inside are now at Kyoto National Museum. It was closed to the public for preservation in 1967, but is now open twice a year. The museum has a full size reconstruction of the tomb with information in Japanese and English. Admittance is 310 yen for adults, as of 2009. Its archeological importance is perhaps comparable with that of Sutton Hoo.