Pritzker Prize laureate Kazuyo Sejima designed this train for the Seibu Group for the company's 100th anniversary—the train is covered with semi-transparent and mirrored material that allows it to blend in with the surrounding landscape. However, rather than being an invisible spy train that creep into enemy territory undetected, it's just going to be a regular old commuter train that looks nice and soothing. Either way, good train.
• Kazuyo Sejima to design mirrored Japanese commuter train [Dezeen]