The square structure with walls that are nearly two metres thick became known as the Gunpowder Tower during the rule of Duke Jacob, because that is what was stored here.  There might have been a well here, because groundwater is close to the surface.  The tower and the castle were linked by a 12-metre bridge on one pillar.  The tower is only visible from the outside.

The road leading to this estate is reminiscent of a narrow mountain road with a deep river valley alongside it.  The estate used to be known as the Libe Estate, and the buildings that are seen there now belonged to a nobleman, Magnuss.  The mansion has a Neo-Gothic glass tower which is known as an architectural curio among specialists.  The Sarkaņi Parish Council sits in the mansion.  The granary is the work of a local enthusiast, Andris Trečaks, who has collected a series of ancient objects.  Outside the granary is a very broad view of the “lower” Lubāna flatlands, resembling a painting with an empty frame.

Found at Rīgas Street 22A, this impressive building was suggested by Latvian President Kārlis Ulmanis and built in 1936 and 1937 after a design by the architect Verners Vitands.  It is seen as one of the most outstanding architectural monuments from the first period of Latvian independence, and it is said that it was once the most modern multifunctional building in all of Europe.  The building now houses the Daugavpils Theatre, the Latgale Central Library, the Latvian Cultural Centre, the Latvian House, the US Information Centre, the Daugavpils Tourism Information Centre and other institutions.  Unity Square is alongside the building, and beautiful compositions of flowers are nearby during the growing season.