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Photo: Bryanmackinnon, Public domain via Wikimedia Commons
Ruins of a 16c (Sengoku era) castle.
Taki-no Castle is a flatland-hilltop Japanese castle ruin located in Tokorozawa, Saitama Prefecture. It was on a key route between the northern Kanto Plain and Hachioji.
© OpenStreetMap contributors
所沢航空発祥記念館
Japan's first airfield.
西武園ゆうえんち
Seibuen Yuenchi is a long-standing amusement and water park since 1950. A water park opens in the summer. Winter activities include outdoor ice skating and a trout fishing pond.
西武ドーム（ベルーナドーム）
The baseball stadium of the Saitama Seibu Lions professional baseball team.
狭山スキー場, sayama sukījō
An indoor ski slope.