Northern Ireland, Londonderry, Guildhall and Shipquay Gate - Guild Hall is the seat of Londonderry's local government and the venue for arts events. It was built in 1890 and has got a Gothic architectural style, similar to its counterpart in London. The stained glass windows of the building depicts many of the notable historical events associated with the city. - The modern city preserves the 17th-century layout of four main streets radiating from the Diamond to four gateways - Bishop's Gate, Ferryquay Gate, Shipquay Gate and Butcher's Gate.