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Osaka Ohtani University (大阪大谷大学, Ōsaka ōtani daigaku) is a private university in Tondabayashi, Osaka, Japan. The school was established in 1966 as a junior women's college. In 2006 it became coeducational, adopting the present name.

Osaka Ohtani College (大阪大谷大学短期大学部, Ōsaka Ōtani Daigaku Tanki Daigakubu) is a private junior college in Tondabayashi, Osaka Prefecture, Japan. It was established in 1950 and became coeducational in 2006.

Taisei Gakuin University (太成学院大学, Taisei gakuin daigaku) is a private university in Sakai, Osaka, Japan. The predecessor of the school was founded in 1916, and it was chartered as a junior college in 1987. The school became a four-year college in 1998 and adopted the present name in 2003.

Kongō Station (金剛駅, Kongō-eki) is a passenger railway station located in the city of Ōsakasayama, Osaka Prefecture, Japan, operated by the private railway operator Nankai Electric Railway. It has the station number "NK66".

Ōsakasayamashi Station (大阪狭山市駅, Ōsakasayamashi-eki) is a passenger railway station located in the city of Ōsakasayama, Osaka Prefecture, Japan, operated by the private railway operator Nankai Electric Railway. It has the station number "NK65".

Sayama Domain (狭山藩, Sayama-han) was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Kawachi Province in what is now the southeastern portion of modern-day Osaka Prefecture. It was centered around the Sayama jin'ya which was located in what is now the city of Ōsakasayama and was controlled by the tozama daimyō Hōjō clan throughout all of its history.

Takidani Station (滝谷駅, Takidani-eki) is a passenger railway station in the city of Tondabayashi, Osaka Prefecture, Japan. The station is operated by the private railway company Nankai Electric Railway.

Sayama pond (狭山池, Sayama-ike) is an artificial reservoir located in the city of Ōsakasayama, Osaka Prefecture in the Kansai region of Japan. Constructed around the 6th century, it claims to be the oldest in Japan, based on chronological survey of potteries near the lake confirmed that the pond was completed in 7th century. The pond was designated a National Historic Site in 1946, and is listed as World Heritage Irrigation Structure by International Commission of Irrigation and Drainage.

Ōsakasayama (大阪狭山市, Ōsakasayama-shi) is a city in Osaka Prefecture, Japan. As of 31 January 2022, the city had an estimated population of 58,465 in 26128 households and a population density of 4900 persons per km2. The total area of the city is 11.92 square kilometres (4.60 sq mi).

Chiyoda Station (千代田駅, Chiyoda-eki) is a passenger railway station located in the city of Kawachinagano, Osaka Prefecture, Japan, operated by the private railway operator Nankai Electric Railway. It has the station number "NK68".

Sayama Station (狭山駅, Sayama-eki) is a passenger railway station located in the city of Ōsakasayama, Osaka Prefecture, Japan, operated by the private railway operator Nankai Electric Railway. It has the station number "NK64".