Dumfries Museum and Camera Obscura is the largest museum in the region. The museum has extensive collections relating to local and history from the pre-historic era. The museum also has the world's oldest working Camera Obscura. Admission is free, however a small fee applies for the Camera Obscura.
The museum's collections cover all material relating to the natural history and human pre-history of the region, from geology to dress, folk material, archaeology and early photographs. Notable artefacts include for example a cast of the skull of Robert the Bruce, Bronze Age cist burial including the remains of a 35-year-old man from the beaker people and a large collection of Roman and Celtic stone crosses and funerary monuments.
Originally built as a four-storey windmill on Corbelly hill, the highest point in Maxwelltown, in 1798, the site was purchased by Dumfries and Maxwellton Astronomical Society in 1834. Over a two-year period the tower was converted into an Observatory, and with advice from polar explorer Sir John Ross, a telescope was purchased from a Mr Morton of Kilmarnock. With its completion in 1836, unfortunately the observatory missed the arrival of Halley's comet; however, it was used in this role until 1872.
The camera obscura is currently the oldest working example in the world, and has been in continuous operation since 1836. The instrument, based in the top level of the windmill tower, offers a complete 360° panorama of the surrounding landscape. The image is projected onto a focusing table below, and operated using a simple rope mechanism. In order to protect the instrument it is only operated during the summer months and on days when weather conditions are clear.
References:House of the Blackheads (Melngalvju nams) is a building situated in the old town of Riga. The original building was erected during the first third of the 14th century for the Brotherhood of Blackheads, a guild for unmarried German merchants in Riga. Major works were done in the years 1580 and 1886, adding most of the ornaments.
The structure was bombed to a ruin by the Germans June 28, 1941 and the remains demolished by the Soviets in 1948. The current reconstruction was erected from 1995 to 1999. Today the House of Blackheads serves as a museum and sometimes concert hall.