Kotwali Darwaza and the Gaur mosques
Half a dayStep 1: To Sona Masjid
Bus or CNG from Chapainawabganj town, about an hour.
Step 2: Choto Sona Mosque
Begin at the mosque, then ask locally about current access to the gate.
Step 3: Kotwali Darwaza
View the gateway as far as the BGB allows, without approaching the zero line.
Step 4: Darasbari ruins
On the way back, stop at the Darasbari Mosque and Madrasa.