Pussalas pils pirmsākumi ir meklējami 14. gs. Tajā laikā minētā pils bija viena no lielākajām šāda tipa aizsardzības pilīm. Pēc Traķu un Viļņas ieņemšanas 1382. g. pils kļuva par Ķēstutu (Kęstutis) - Lietuvas dižkunigaišu dzimtas dzīves un valdīšanas vietu. 1655. g. Polijas – Lietuvas lielvalsts un Krievijas kara laikā pili nopostīja. Līdz mūsdienām no iespaidīgās celtnes (aizņēma 4 ha platību) saglabājušās tikai no laukakmeņiem celtā aizsargmūra un torņu paliekas. Tās iekšpagalmā ir apskatāma efektīvā viduslaiku ieroča – katapultas atdarinājums.

The Krimulda Estate was first recorded in documents in the 15th century.  The Krimulda Castle that can be seen now is on the right bank of the ancient Gauja River valley opposite the aerial tram.  There are outstanding views of the ancient river valley from the castle and the opposite shore.  The Krimulda Castle is a Neo-Classical structure which was built by a local nobleman in the 19th century.  In the 1920s, the castle was expropriated and turned over to the Latvian Red Cross, which installed a children's sanatorium there.  Today the Krimulda rehabilitation hospital is in the building, and among other structures, the ones that have survived include the stables, threshing barn, servants' quarters, governor's quarters, and the so-called Swiss house.  Educational tours are available, and overnight stays are possible at the estate.

The Castle of the Livonian Order in Ventspils was first listed in documents in the late 13^th century, and despite damaging wars, it has maintained its essence as a castle to this very day and only with minimal changes. The castle is also known as the oldest Medieval fortress in Latvia. Today it is home to a modern museum.

Der Stützpunkt des Livländischen Ordens. Der Bau der Burg war eine Strafe für Ortsbewohner. Die Burg wurde nach dem Befehl des Dänischen Königs Frederik der II 1576 vernichtet.

Pirmie dokumenti par Kokmuižu atrodami 1601. gada zemes revīzijas pierakstos. Tur sniegtā informācija vēsta, ka Kokmuiža pastāvējusi jau 1560. gadā. Taču 1880. gadā vācu muižnieks sākas celt kungu māju neobaroka stilā. 20. gs. sākumā tā tika izpostīta, bet 1937. gadā to pārveidoja par skolu.

Kokmuižā kādreiz atradusies alus darītava. Tas bija laika periodā no 17.- 20. gs. Tā bija viena no slavenākajām alusdarītavām visā Vidzemes guberņā.

Mūsdienās var izstaigāt muižu pats vai gida pavadībā. Var aplūkot kungu māju, staļļu ēkas, muižas pārvaldnieka namu, bibliotēku, ekspozīciju, abas klētis un alus darītavas pagrabu, kā arī sfērisko saules pulksteni.

Several of the buildings of the Šlītere Semi-Estate have survived to the present day – the servants' house (late 19th century), the pump house (mid-19th century), the smokehouse (mid-19th century), the cattle barn, etc.  A forestry building was built here in 1936 and renovated in 2010.  Since the end of 2009, the administration of the Slītere National Park has been housed here.  Today the building also houses the Kurzeme regional branch of the Environmental Protection Board.  Opposite the building are two yews, and there is a productive ivy which has covered the northern side of the servants' house.  The common yew and the Baltic ivy are symbols of Šlītere, and you can see and photograph them here without "bothering" them in their natural environment.  The pump house contains a well that is unique in Latvia – it is 34 m deep, which is nearly the height of the Blue Hills of Šlītere.  It reportedly was active until the 1970s and delivered water to the forestry system.  A fragment of the stone well can be seen as a part of the wall of the pump house.  The semi-estate is surrounded by small elements of a park, including an impressive alley of elm trees.  Locals says that pre-war Latvian President Kārlis Ulmanis spent the night at the building once while on a hunt.

The Jakiškiu Estate was first mentioned in documents in the late 16th century.  The estate had elements of Classicism in terms of its architecture.  Among the buildings, the only ones that have survived are the mansion, an ice cellar and a steam-driven windmill.  The estate has not been restored, so it is still authentic.  Its artistic soul is preserved by various objects that remain from the time when people lived at the estate and from the Soviet era.  Alongside the estate are a few fragments of a park, which covers approximately 2 ha.  There is an ancient alley of linden trees that are on both sides of the entrance road, as well as several other valuable types of trees and a small pond.

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.

The first stone castle in Alsunga was built in 1372, starting with the central part of the southern wing. The authorised representative of the Livonian Order, who was subject to a higher-ranking official in Kuldīga, lived here. The guard towers and other parts of the castle were gradually added between the 15^th and the 18^th century. The Baroque castle with its two towers is quite impressive. The castle is unique in and outside of Latvia in that it is one of the rare Medieval castles to have survived to the present day in part, but in its original historical appearance.  The castle offers an exhibition about its history.  Visitors can look at a Suiti kitchen, write a letter with a fountain pen in Barbara’s boudoir, or celebrate a special event in the romantic venue of the castle’s round tower. Renovation of the castle began in 2018, and it is closed to visitors.  Still, you can look at its exterior and tour its garden.