JAXA Earth Observation Center Exhibition Hall in Hatoyama presents Earth-observation satellite models, satellite imagery, quizzes and environmental-monitoring displays. Admission is free; public exhibits are open 10:00-16:00 on weekdays and closed Saturdays, Sundays, holidays, year-end holidays and irregular maintenance days. Weekday guided tours of work sites run 10:00-16:00 by advance booking for groups; the hall welcomes wheelchairs and strollers and provides free parking for about 30 cars. Check JAXA current visitor guidance before travel because maintenance closures can change. Address: 1401 Numanoue, Ohashi, Hatoyama-machi, Hiki-gun, Saitama 350-0393, Japan.