Palaces and Parks of Potsdam and Berlin | Germany

With 500 ha of parks and 150 buildings constructed between 1730 and 1916, Potsdam's complex of palaces and parks forms an artistic whole, whose eclectic nature reinforces its sense of uniqueness. It extends into the district of Berlin-Zehlendorf, with the palaces and parks lining the banks of the River Havel and Lake Glienicke. Voltaire stayed at the Sans-Souci Palace, built under Frederick II between 1745 and 1747.

Amongst Potsdam's UNESCO WHSs, this postcard shows: Chinesisches Haus (Sanssouci),  Schloss Sanssouci, Schloss Cecilienhof, Neues Palais (Sanssouci) and Alexandrowka

This postcard 

Year of Inscription: 1990

Struve Geodetic Arc (Alatornion kirkko) | Finland

The Struve Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea, through 10 countries and over 2,820 km. These are points of a survey, carried out between 1816 and 1855 by the astronomer Friedrich Georg Wilhelm Struve, which represented the first accurate measuring of a long segment of a meridian. This helped to establish the exact size and shape of the planet and marked an important step in the development of earth sciences and topographic mapping. It is an extraordinary example of scientific collaboration among scientists from different countries, and of collaboration between monarchs for a scientific cause. The original arc consisted of 258 main triangles with 265 main station points. The listed site includes 34 of the original station points, with different markings, i.e. a drilled hole in rock, iron cross, cairns, or built obelisks.

Year of Inscription: 2005

Frontiers of the Roman Empire (Aalen) | Germany

The ‘Roman Limes’ represents the border line of the Roman Empire at its greatest extent in the 2nd century AD. It stretched over 5,000 km from the Atlantic coast of northern Britain, through Europe to the Black Sea, and from there to the Red Sea and across North Africa to the Atlantic coast. The remains of the Limes today consist of vestiges of built walls, ditches, forts, fortresses, watchtowers and civilian settlements. Certain elements of the line have been excavated, some reconstructed and a few destroyed. The two sections of the Limes in Germany cover a length of 550 km from the north-west of the country to the Danube in the south-east. The 118-km-long Hadrian’s Wall (UK) was built on the orders of the Emperor Hadrian c. AD 122 at the northernmost limits of the Roman province of Britannia. It is a striking example of the organization of a military zone and illustrates the defensive techniques and geopolitical strategies of ancient Rome. The Antonine Wall, a 60-km long fortification in Scotland was started by Emperor Antonius Pius in 142 AD as a defense against the “barbarians” of the north. It constitutes the northwestern-most portion of the Roman Limes.

Churches of the Pskov School of Architecture (Ensemble of the Spaso-Mirozhsky Monastery: the Transfiguration Cathedral, 12th century) | Russia

This group of monuments is located in the historic city of Pskov, on the banks of the Velikaya River in the northwest of Russia. Characteristics of these buildings, produced by the Pskov School of Architecture, include cubic volumes, domes, porches and belfries, with the oldest elements dating back to the 12th century. Churches and cathedrals are integrated into the natural environment through gardens, perimeter walls and fences. Inspired by the Byzantine and Novgorod traditions, the Pskov School of Architecture reached its peak in the 15th and 16th centuries, and was one of the foremost schools in the country. It informed the evolution of Russian architecture over five centuries.

Year of Inscription: 2019

Soltaniyeh | Iran

The mausoleum of Oljaytu was constructed in 1302–12 in the city of Soltaniyeh, the capital of the Ilkhanid dynasty, which was founded by the Mongols. Situated in the province of Zanjan, Soltaniyeh is one of the outstanding examples of the achievements of Persian architecture and a key monument in the development of its Islamic architecture. The octagonal building is crowned with a 50 m tall dome covered in turquoise-blue faience and surrounded by eight slender minarets. It is the earliest existing example of the double-shelled dome in Iran. The mausoleum’s interior decoration is also outstanding and scholars such as A.U. Pope have described the building as ‘anticipating the Taj Mahal’.

Year of Inscription: 2005

Tabriz Historic Bazaar Complex | Iran

Tabriz has been a place of cultural exchange since antiquity and its historic bazaar complex is one of the most important commercial centres on the Silk Road. Tabriz Historic Bazaar Complex consists of a series of interconnected, covered, brick structures, buildings, and enclosed spaces for different functions. Tabriz and its Bazaar were already prosperous and famous in the 13th century, when the town, in the province of Eastern Azerbaijan, became the capital city of the Safavid kingdom. The city lost its status as capital in the 16th century, but remained important as a commercial hub until the end of the 18th century, with the expansion of Ottoman power. It is one of the most complete examples of the traditional commercial and cultural system of Iran.

Year of Inscription: 2010

Meidan Emam, Esfahan | Iran

Built by Shah Abbas I the Great at the beginning of the 17th century, and bordered on all sides by monumental buildings linked by a series of two-storeyed arcades, the site is known for the Royal Mosque, the Mosque of Sheykh Lotfollah, the magnificent Portico of Qaysariyyeh and the 15th-century Timurid palace. They are an impressive testimony to the level of social and cultural life in Persia during the Safavid era.

Year of Inscription: 1979