Where is Siwan?

Maharajgani19.2 km · 11.9 mi → Mairwa19.3 km · 12.0 mi → Barauli29.1 km · 18.1 mi → Gopalganj31.1 km · 19.3 mi → Saran51.9 km · 32.2 mi → Revelganj55.5 km · 34.5 mi → Marhaura58.1 km · 36.1 mi → Purba Champaran62.3 km · 38.7 mi → Chapra62.7 km · 38.9 mi → Bettiah66.3 km · 41.2 mi → Shahpur68.9 km · 42.8 mi → Sagauli71.6 km · 44.5 mi →

Amarpur25.03967, 86.90247 → Araria26.20000, 87.40000 → Arrah25.55629, 84.66335 → Arwal25.16158, 84.69040 → Asarganj25.15046, 86.68639 → Aurangabad24.75204, 84.37420 →