The breathtaking green forest forms the border between two countries, France and Germany.2. Switzerland and Italy: The Majestic Alpine Boundary
The modern-day border between Switzerland and Italy spans 744 km, from the midpoint of France-Switzerland-Italy at Mont Dole in the west to the midpoint of Austria-Switzerland-Italy near Piz Lad in the east. Mostly traversing the High Alps range, reaching heights exceeding 4,600 meters at Dufourspitze in the east and descending to under 200 meters at Lago Maggiore in Switzerland. The border, marked by small pillars and steel wires, is a product of the Napoleonic era, established with the temporary constitution of the Helvetic Republic on January 15, 1798, and restored in 1815. Since 1946, the border has remained unchanged as the boundary between the Italian Republic and the Swiss Confederation, apart from minor adjustments and territorial exchanges. In 2008, Switzerland joined the Schengen Area, resulting in the removal of border controls along this border. However, customs checks remain possible, as Switzerland is not part of the EU Customs Union.

The Vietnam-China border.The border between Belgium and the Netherlands.
The border between Belgium and the Netherlands has a fascinating history, dating back to the separation of the southern provinces of the Netherlands, which became Belgium. The boundary between the two countries was established by the Treaty of Boundary signed in The Hague on November 5, 1842, and the Maastricht Convention on August 8, 1843. While these agreements led to the formalization and demarcation of the main border between the two countries, they also complicated the situation in the enclave of Baarle, which remains unresolved.
The border between Belgium and the Netherlands.The Romania-Bulgaria border.
Nowadays, the 26 countries within the Schengen Area allow people to freely travel across 16,500 km of borders. Even when the photos are taken miles apart, they all depict a reality far from what people usually think about borders. Romania and Bulgaria share a common coastline. The Romania-Bulgaria border stretches over 609 km, with approximately 470 km formed by the Danube River. The border begins in the east at the tripoint with Serbia near the Bulgarian town of Bregovo and follows the river to the cities of Silistra (Bulgaria) and Calarasi (Romania). The majority of the border length follows the flow of the lower Danube, all the way to the town of Silistra. From Silistra, the river continues northward into Romanian territory. East of that point, the border on land crosses the historical region of Dobruja, dividing it into Northern Dobruja in Romania and Southern Dobruja in Bulgaria. Additionally, the border becomes a roadway until it reaches the Black Sea between the towns of Shabla (Bulgaria) and Mangalia (Romania). The first Bulgaria-Romania bridge across the Danube between the cities of Ruse (Bulgaria) and Giurgiu (Romania) was inaugurated in 1954. The second bridge was inaugurated in 2013, between Vidin (Bulgaria) and Cala. The Bulgaria-Romania border is an internal border of the European Union. However, as of 2021, no country is part of the Schengen Area. Therefore, border control is carried out between the two countries, although usually together (once for each crossing).

A cable car linking two neighboring nations.Exploring the Junction: Thailand, Laos, Myanmar
To demarcate the territories of these three Southeast Asian countries, a colorful triangular formation is adopted.

Brazil National Park.9. Germany and Czech Republic
This is actually the old border post located between Germany and the Czech Republic. The Germany-Czech border is about 815 km long. The border route required people to keep a portion of this house in the Czech Republic and demolish the rest on German territory. The border originates from the boundary of the Bohemian Crown Land, later becoming the border between the German Empire and the Austrian Empire.
During the period 1945–1990, the border formed part of the Iron Curtain and was heavily fenced and tightly guarded. The Czech Republic joined the Schengen Area in 2007. This meant that all passport checks were removed along the border in December 2007. Restrictions on Czech citizens working in Germany expired in April 2011.
The Germany-Czech border begins in the northeast, south of the German town of Wittau, with its tripoint formed by its intersection with the German-Polish and Czech-Polish borders, located on the Neisse River. The border runs along the slopes of the Ore Mountains to the village of Mitterhammer in Bavaria. Before Germany's reunification, this Bavarian village formed a tripoint between FRG, GDR, and Czechoslovakia. The border then turns southeastward and passes through the forests of Upper Palatinate and Bohemia to the tripoint with the German-Austrian and Austrian-Czech borders on the outskirts of the Sumava National Park.
Border of the Houses between Germany and the Czech Republic
Germany and the Czech Republic10. Haiti and the Dominican Republic
The clear border delineates the stark differences in protection and utilization of natural resources between Haiti and the Dominican Republic. While greenery covers the entirety of the Dominican Republic, deforestation seems to be quite severe in Haiti. The border starts in the north at Boca del Rio Dajabon where the Dajabon River empties into Manzanillo Bay, just west of the town of Pepillo Salcedo in the Dominican Republic. The border then follows this river for a short distance southward before continuing southward through a series of straight lines across Laguna de Saladillo, rejoining the same river between Dajabon (Dominican Republic) and Ouanaminthe (Haiti).
Then, the border follows the river southward to the village of Vara de Vaca in the Dominican Republic. The border then advances overland to the west, sharply turning southeastward upon reaching the Libon River. It continues along the river to the DR-45 road and then follows this road southward for a distance through mountainous terrain down to the Artibonite River. The border then follows the Artibonite westward to its confluence with the Macasia River, following this river eastward. The border then proceeds overland southeastward and southward through various straight segments, also briefly utilizing Rivière Carrizal. It then turns westward in the vicinity of Granada, and then turns southeastward to run parallel to Lake Etang Saumatre, crossing it briefly at a point.
The Dominican Republic-Haiti border is 376 km long and splits the island of Hispaniola according to the Ryswick Treaty signed by the corresponding former European colonial powers of France and Spain. In 1621, England made an unsuccessful attempt to seize both sides of the island. In the early 20th century, the United States occupied both countries and made several changes to the border. The Dominican Republic comprises about two-thirds of the eastern part of the island, and Haiti one-third of the western part.
The border reflects the differences between the two countries.