On the right bank of the Bērze River and in the western part of Dobele, the castle hill and its fortified forecastle were occupied between the 10th and 13th centuries, with an ancient town at its foot (currently the square between Tērvetes Street and the Liepāja highway).  As was common, the Livonian Order used this ancient Semigallian castle hill to build a brick castle between 1335 and 1347.  The castle was sacked during the 18th century, and its fairly impressive and beautiful ruins have been conserved.  A viewing platform is part of the charm.

The Lielstraupe Castle is the only building in Latvia which contains a Medieval castle and a church.  Work on the castle began in 1263.  The building suffered great damage during the 17th and 18th centuries, as well as during the riots of 1905.  The complex was restored in 1909 by the architect Wilhelm Bockslaff.  There are several artistic monuments in the church – the organ loft from the 17th century and the pulpit paintings of the 18th century.  In 1944, two stained glass windows produced by the artist Sigismunds Vidbergs were installed at the church – Golgotha and Birth of Christ.  The tower contains a clock produced by a local clockmaker, and there is a sun dial on the wall of the church.  Visitors to the park of the castle will see the wooden bell tower which dates back to 1744.  A memorial plaque to men who fell during World War I and Latvia's liberation battles was installed in the church in 1938.  A drugs treatment hospital was installed in the castle in 1963.  The church is open during worship services, and the rest of the complex can only be viewed from the outside.

The construction of the state began in the early 20th century.  The mansion was built of bricks and fieldstones between 1905 and 1911 in the styles of Historicism and Art Nouveau.  The estate was owned by engineer and professor Stanislav Kerbedz from St Petersburg, the first Russian engineer to develop principles for the architectonic aspects of bridges.  These were used during the latter half of the 19th century, and Kerbedz led the construction of the Nikolayev bridge across the Neva River in St Petersburg.  Kerbedz’s wife, Yevgenia, was well known as a lover of art, and she brought various art objects to the estate from Italy.  The Lūznava Estate was a popular place for gatherings of artists during the summers.  Among those to visit was the distinguished Lithuanian painter and composer Mikalojus Čiurlionis.  The estate is surrounded by a 23.7 ha landscape park with a system of ponds.  Near the estate is a statue of the Madonna, which was carved by an unknown Italian artist.  The statue was damaged and thrown into a pond during World War II, but it was restored in 1991.  Reconstruction of the main building of the estate was complete in 2015, and today it is a modern and international centre for environmental education and the arts.

Muiža vēsturiskajos avotos ir minēta jau 1560. gadā. Tagad redzamā kungu māja ir celta no akmens 1805. g. Padomju laikos tajā atradās Matsalu rezervāta administrācija, bet mūsdienās ēkā ir izveidota viesnīca. Līdz muižai nokļūstam pa skaistu aleju, kuras apkaimē ir redzamas citas muižas kompleksa ēkas.

Dabiskā zemesragā starp Lielo un Mazo Ludzas ezeru 14. gs. beigās slejās seno latgaļu koka pils, kuras vietā Livonijas ordenis uzcēla Latgales varenāko mūra pili. Tā bija iespaidīga trīsstāvu celtne kvadrāta formā ar sešiem torņiem, trīs vārtiem un divām priekšpilīm. Pēc krievu iebrukuma Latgalē 1481. g., Ludzas pili atjaunoja 1525. g. 1654. g. to atkal izposta Krievijas cara Alekseja Mihailoviča karaspēks. Jau 18. gs. no pils bija palikušas tikai drupas, kas arī mūsdienās ir ļoti iespaidīgas un ainaviskas (ar skatu uz Lielo Ludzas ezeru un baznīcu torņiem).

The Raudondvaris Castle is on the right bank of the Neveža River in Raundondvaris.  The estate and a park that covers 3.8 ha has two buildings, an orangery, a stable for horses and a cellar.  Alongside the estate in 1834 was a park that was rebuilt in the 20th century with new plants and flowerbeds that featured ancient types of roses.  The northern part of the park is forested, with maple, pine and linden trees, as well as Edelweiss that blooms in the spring.  Paths in the park lead to a local environmentally protected area.

The Livonian Order built a fortified castle on the largest island in Lake Alūksne – Marijas Island (Pilssala Island) in 1342.  It was linked to the land by a 120 m drawbridge.  The castle had several forecastles, and it was regularly modernised and expanded until the end of the 17th century.  It was one of the largest Livonian Order Castles, with similar ones found in Vastelina and Izborsk.  Defensive barriers were put up around the castle, which survived until the Great Northern War.  Its central part was blown up by the defeated Swedish military in 1702, after which Russians completely sacked it.  All that is left are the castle ruins on the island, which is now linked to Alūksne and Temple Hill by two wooden bridges.  An open-air stage alongside the castle ruins is used for various public events.

Muižas pils (no sarkaniem ķieģeļiem celta) ir meklējama ceļu krustojumā pie Gaujām – 2 km ziemeļaustrumos no Jaunpiebalgas centra, Gaujas labajā krastā. Līdz 1918. g. muižas īpašnieki bija slaveno grāfu Šeremetjevu dzimta. Muižas pili nodedzināja 1905. g. nemieros, bet vēlāk atjaunoja. Muižas pilī bijušas dažādas iestādes: slimnīca, kolhoza „Piebalga” administrācija, mūsdienās – pašvaldība un dažādu sadzīves pakalpojumu sniedzēji.

The New Sigulda Castle was built between 1878 and 1881 for Prince Kropotkin.  Its tower was extended in 1937.  From 1923 until 1940, the building was known as the Writers Castle, and it was managed by the Latvian Press Association.  During the Soviet era, a cardiology sanatorium was housed there.  In 1993, the Sigulda City Council took over the castle, and since 2003 it has been home to the Sigulda Administrative District Council.  The wooden residential building (mid-19th century) in which the Kropotkin family lived still survives, as do the granary (late 18th or early 19th century), the gardener's house (19th century), and the stone wall (19th century).  The New Sigulda Castle is part of the historical centre of the Sigulda, Turaida and Krimulda complex, as are the ruins of the Sigulda Castle and the Krimulda Castle, the Krimulda Estate and the Turaida Castle.

Die älteste (16 Jh.) der drei Burge am Fluss Nemunas. Renoviert nach dem 2. Weltkrieg. Heutzutage – eine Schule. Ein Park. Blick vom Burgturm.