This dilapidated Mughal-era structure is about the oldest building in Dhaka, and searching for it among the high-walled, pinched alleyways of this part of the city is a highlight of a wander around Old Dhaka. Bara Katra , once a palace of monumental dimensions, was built in 1644 and now has a street running through its arched entrance (which houses a cool little tea stand). While only a small portion of the original structure remains standing, the building is still occupied, used mostly as storerooms (ask to peek inside), and there’s a small prayer room on top.
To find Bara Katra, walk west along Water Works Rd, then turn left down the alley beside a blue-and-white, mosaic-tiled mosque.