The Dominica Museum You will never mistake The Dominica Museum with any other building in Roseau. It is a very orange structure which used to be Old Market of the capital but today, it is where the national museum of Dominica resides. It wasn’t always orange – the building was repainted in orange back in 2007 as a beautification and renovation plan. The roof is also orange but of a different shade. The windows and the shutters are red. You won’t miss it.