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The Swedish army built a modern fortress during the 1640s with five bastions and two gates.  There were 120 cannons and mortar throwers, barracks for soldiers, flats for officers, a garrison church and warehouses for food at munitions.  After the Great Northern War in 1710, the fortress was taken over by the Russian army.  After the Soviet occupation in 1940, the Soviet navy took over the fortress.  Alongside it is a former Soviet army facility with abandoned buildings and a monument to sailors who served in submarines.  The fortress is open for tours on Saturdays and Sundays.

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The Cape of Kolka is freely accessible to local residents and tourists today, but the border guard facility still serves its purposes and is not open to civilians.
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This coast guard facility was housed in a building that used to be a maritime school. In the post-Soviet era, accommodations were offered at the building. The coast guard tower is one of the best-preserved objects of its kind along the Latvian shoreline.
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Nordeķu - Kalnciema kāpu grēdas daļa Kleistu meža austrumdaļā pie Dzirciema ielas. Padomju laikā šeit darbojās divi (vēlāk viens) P - 35 radars, kas griezās ap savu asi. Vietējie iedzīvotāji tolaik šo vietu bija iesaukuši par "Lokatoru kalniņu". Ziemeļos no tā atradās padomju armijas cūku ferma.

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All that’s left of the battery today are the ruins of a cement blockhouse which have slid all the way down to the beach because of years of abuse by the wind and the waves. It is an interesting monument to history with a long-term fate that we can guess at – it will disappear under the sea.
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This was Coastal Defence Battery No. 500 at one time, and it was dismantled in 1955. There were four 130 mm cannons, and their foundations can still be spotted in the forest northeast from the lighthouse. They are mostly covered by moss and can be very hard to find. Those who are not familiar with the region will probably have the most trouble of all.
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The largest collection in Europe of Soviet aviation and military equipment is on the territory of the Rīga International Airport and is open to visitors. The collection was assembled over the course of 40 years.
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Ein am Ende des 19. Jh. gebautes Teil der Festung. Ein Museum, das Verbrechen totalitäre Regimes gegen Menschlichkeit wiederspiegelt.

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The Plāņciems missile base is in the forests of Bārta and is not easy to access. This special air defence facility is being dismantled for the purpose of obtaining building materials.
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The former Soviet communications division at Plāņciems in the forests of Bārta is privately owned and is being dismantled at this time.
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The radio telescope at Irbene was at one time used for anti-espionage purposes. There were various military units and objects in Irbene, including a military housing estate that has now been abandoned. The radio telescope is now run by the Radio Astronomy Centre of the Latvian Academy of Sciences for scientific purposes. Guided tours of the object are available.
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This unique territory covers more than 24,400 hectares, and the Soviet military used it as an aviation training centre. The history of the base dates back to 1951, when four kolkhozes were shut down, roads were closed, and several hundred farms and homes were simply moved elsewhere. A civilian presence at the base was restored only in 1993, when several new roads were installed. If you want to get a bird’s eye view of the base and its forests, you have to climb a high, manmade hillock from which commanders watched manoeuvres. We do not recommend that you wander off from the roads!
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The Jūrkalne Air Defence Division facility is privately owned at this time. A motor racing track has been installed there.
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The job for the No. 15 Radio Technology Brigade at Saraiķi was to defend Soviet Latvia’s shoreline back in Soviet times. Today the facility is owned by the Defence Ministry, and the No. 17 Home Guard Battalion uses it for training purposes.
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A rare monument survives in Skulte – a Soviet-era jet bomber, the IL-28, which supposedly was equipped to carry winged missiles. The airplane is on three cement pedestals.
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On the shore of the Daugava River, to the East of Lielupes Street and South-east of Jātnieku Street, there are the remnants of four battery positions that were blown up in their day. The batteries had 152-mm cannons, and this was part of the former system of fortifications in Rīga (see also Komētforts, the Daugavgrīva fortress, and the fortifications of Mangaļsala). The aim was to protect the city from invaders who came from the sea. From the top of the batteries you can see the Daugava and the northern segment of the manmade Krievu Island (a huge pile of sand). It does have to be said that the condition of this historical monument is quite pitiful.
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Today it seems unbelievable that just 20 years ago there were buildings on the coastline with massive projectors that were rolled onto a platform at night so as to shed light on the nearby sea and beach and to look for potential violators of the border regime. Only the buildings and the ruins of the platform are still there – they have been seriously damaged by the waves of the sea.
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The No. 14 Border Guard facility at Akmeņrags was a naval observatory. The facility belongs to the regional local government and is not used for any purpose at this time.
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The Bauska Castle contains a collection of cast iron cannons which date back to the latter half of the 17th century and the beginning of the 18th century. They were manufactured in the Duchy of Courland. The cannons that are in the garden of the castle were not found there – they were found in different locations in Zemgale. Four of the largest cannons came from Jaunsvirlauka, where they were found on the banks of the Lielupe River opposite Emburga. They are the best preserved weapons of their type in Latvia. The only cannon that was found in the castle itself is currently in its South-eastern tower as a thematic exhibit. When it was being cleaned, two cannonballs were found in the weapons. The local Livonian Order castle is in ruins, but it and its defensive structures, including earthen ramparts that were installed from the mid-15th until the early 18th century, represent an important element of Latvia’s military heritage.
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The projector buildings of the former border guard facility have been preserved at Labrags, but they are privately owned.