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Struve Geodetic Arc (Rudi)
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Landmark
The Struve Geodetic Arc is a network of survey triangulations stretching from Norway to the Black Sea, and the point near Rudi village is the only UNESCO World Heritage site in Moldova. Established between 1816 and 1855 by the astronomer Friedrich Georg Wilhelm Struve, the arc was instrumental in determining the exact size and shape of the Earth. The Rudi station was measured in 1847 and is currently marked by a commemorative obelisk erected in 2006. This scientific landmark represents a masterpiece of 19th-century geodesy and exceptional international scientific cooperation across ten modern nations. The entire arc originally consisted of 265 main station points, with 34 of them protected under the UNESCO listing since 2005. Its preservation highlights the critical importance of precise measurement in the development of modern cartography and satellite navigation systems. The site provides a unique look into the history of how humanity accurately mapped the physical dimensions of the planet.
- Location: Moldova
- Top sights: Struve Geodetic Arc Point · Biserica din lemn „Preasfintei Fecioare” (1870)
- Nearby: Otaci (14 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -5 | -3 | 2 | 9 | 16 | 19 | 22 | 21 | 16 | 9 | 3 | -3 |
| Rain mm | 36 | 37 | 40 | 43 | 62 | 78 | 75 | 48 | 47 | 44 | 40 | 35 |
📋 Practical info
Visiting
The Struve Geodetic Arc (Rudi) is the only UNESCO World Heritage site in Moldova, accessible as an outdoor monument at any time. The exact measurement point is marked by a stele.
Typical hours
As an open site, there are no opening hours. Visits are most pleasant during daylight to see the surroundings and the marker.
Photography
Photography is possible without restrictions; the stele against the wide landscape is a popular subject. In good weather, panoramic shots are recommended.
Time needed
20 to 30 minutes are enough to visit the point. Those wanting to learn more about the survey history can study the information board on site.
Combine with
Combine the visit with a tour of Rudi village, known for its traditional houses. Local wineries also offer tastings in the area.
Getting there
The site is reachable via a dirt road from Rudi; a car with some ground clearance helps. Signage is modest, so a map or GPS is useful.
Insider tip
A tip: learn about the scientific importance of the Struve Arc beforehand. Bring water, as there are no supply facilities in the area.
Geography
Facts
- The Rudi survey point was added to the UNESCO World Heritage list in 2005.
- Original geodetic measurements at the Rudi station were taken in 1847.
- The entire Struve Geodetic Arc spans a total length of 2,820 kilometers.
- The network currently crosses the borders of 10 different modern countries.
- The commemorative obelisk at the site was officially unveiled in 2006.
- The arc was established between 1816 and 1855 to measure the Earth's size.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Struve Geodetic Arc (Rudi) (2)
Sights nearby
Frequently asked questions
What exactly is the Struve Geodetic Arc in Rudi?
It is a point in a chain of survey triangulations used to determine the Earth's shape.
Is the Struve Arc a UNESCO World Heritage site?
Yes, it is the only UNESCO World Heritage site in the Republic of Moldova.
How to find the marker in Rudi?
The marker is located in an orchard near the road to Rudi, marked by a monument.
Do I have to pay an entrance fee?
No, visiting the monument is free and accessible at any time.
When were the measurements carried out?
The geodetic measurements were carried out between 1816 and 1855 under Friedrich Georg Wilhelm Struve.
Struve Geodetic Arc (Rudi): where is it located?
Struve Geodetic Arc (Rudi) is located in Moldova.
Struve Geodetic Arc (Rudi): what is there to see?
Highlights include Struve Geodetic Arc Point, Biserica din lemn „Preasfintei Fecioare” (1870).
Struve Geodetic Arc (Rudi): when is the best time to visit?
The most pleasant time to visit is Jun, Aug.
Struve Geodetic Arc (Rudi): why is it worth visiting?
The Struve Geodetic Arc is a network of survey triangulations stretching from Norway to the Black Sea, and the point near Rudi village is the only UNESCO World Heritage site in Moldova.
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