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.

Druvienas muižas pirmsākumi ir meklējami 17. gs. beigās. Tagad redzamā apbūve ir veidojusies 19. – 20. gs. Līdz mūsdienām ir saglabājusies muižas pils (1898. g.) un saimniecības ēkas – klētis, kūtis, kalpu mājas. Muižas pilī 20. gs. 50. gados izvietoja pamatskolu. Diemžēl sākotnējie ēkas interjeri nav saglabājušies. Pili ieskauj parks. Šobrīd ēkā atrodas Druvienas Latviskās dzīvesziņas centrs, kas piedāvā dažādas aktivitātes un radošās darbnīcas. 

Found on the right bank of the Daugava where the little Karikste river flows into the Daugava, all that remains of the castle today is a set of ruined walls and foundations.  The castle was built by the Livonian Order in 1224, and it was inhabited until the mid-17^th century, when it was sacked during the Polish-Swedish war.  The ruins offer a good view of the local gravel road that goes along the right bank of the river valley.

Found along Liepājas Street, which is the old road from Livonia to Prussia, the ruins are a symbol of Aizpute and are depicted on its herald and its flag.  Work on the castle began around 1248 and was done during the role of Dietrich von Grenningen, master of the Livonian Order.  It was a castella-type stone castle with a tower at one corner and wooden buildings in the courtyard.  The bishopric of Kurzeme was in Aizpute during the Middle Ages.  The castle was abandoned after the Livonian War in the latter half of the 16^th century, but it was restored in the early 17^th century, with annexes being added to it.  Part of the castle had residential flats until the 1970s.  The ruins have been preserved to a certain extent, but it is dangerous to clamber upon them, so that is forbidden.  Aizpute is one of the oldest towns in Latvia, with written information about it dating back to 1378.  100 m to the East of the ruins is a stone bridge, which is one of the newest bridges in Latvia.  The stone railings were presented by Baron Karl von Manteufel, and the bridge was installed in 1907.  The granite plaque on the railing on the north end of the bridge has the herald of the Manteufel dynasty, though it is hard to see.

The Trakai Island Castle is the only East Europe's castle which is built on a little island. The process of building this castle started in 14th century. After its fall on 1410 during a war it lost its meaning as a military base and became a living place for ruler of Lithuania. Trakai Castle is one of the most popular objects in Lithuania for tourists. Inside the castle is a museum which tells about Trakai history. 

Šī vairāk ir uzskatāma par vēsturisku vietu, nekā tūrisma objektu, jo muižas pils atrodas avārijas stāvoklī un apskatāma no ārpuses! Mūsdienās redzamais muižas komplekss ir veidojies 19. - 20. gs. mijā, bet muižas pils (vēlīnais klasicisms) - 19. gs. pirmajā pusē. Vēlāk tai piebūvēja neobarokālus torņus abos ēkas galos. Vienā no tiem atradās kapela, otrā – bibliotēka. 19. gs. tika uzsākta ainavu parka un dendrārija izveide. 19. gs. beigās pilī norisinājās plaši remontdarbi, un tās īpašnieki – Kerbedzu dzimta ēku līdz pat 1. pasaules karam atvēlēja māksliniekiem. No 1920. - 1975. g. muižā darbojās pamatskola, tad ēkas kā noliktavu izmantoja kolhozs.

The Jelgava Castle stands between the Lielupe and Driksa rivers. The Baroque castle was designed by the well known Italian architect Francesco Bartolomeo Rastrelli, and this was the most important piece of early work that he did. The Latvian Agriculture University is housed in the castle today. A museum was established in 1968. +371-6300-5617. The socle story of the south-eastern wing has the graves of rulers from the Duchy of Courland – members of the Kettler and Byron dynasties, which ruled from 1569 to 1791. There are 18 restored sarcophagi here.

The Rēzekne castle hill is an impressive hillock (15 m) on the right bank of the Rēzekne River. From the 9^th to the 12^th century, there was a Lettigalian castle here. In 1285, the Livonian Order began to build a two-story stone castle on the site, and its ruins have survived to this very day. Alongside the castle hill is the Eastern Latvian Creative Service Centre - „Zeimuļs”, along with a tourism information centre.

One of the most important military and political elements of the Livonian Order, the Bauska Castle was built between 1443 and 1456 at the place where the Mūsa and Mēmele rivers flow together.  The castle had five towers and walls that were up to three metres thick.  Between 1580 and 1596, the forecastle was replaced with a residence for the duke of Courland, and its walls were finished with the sgrafito technique.  The castle suffered damage during wars in the 16th and 17th century, but it was always restored until 1706, when the Russian military blew it up during the Great Northern War.  Today the castle houses a museum, with a viewing platform in its south-eastern tower.

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.