오파이‬에서 가장 멋진 ‪20‬개의 천연기념물

The MN18 Observation Bunker is part of the first line of defense of the Position Fortifiée de Liège (PFL), a network of bunkers built in the 1930s to defend Belgium against a German invasion. MN18 was the 18th bunker in the Margarins-Neufchâteau sector and equipped with an FM turret, recognizable by its tapered shape. During the German attack in May 1940, the bunker was destroyed by a 50 kg shaped charge placed on top of the turret, just where the periscope was located. The damage is still visible, making MN18 a tangible reminder of World War II. Right next to the bunker is the Knuppelstock orientation table, an impressive work of blue limestone with a diameter of 1.5 meters and weighing approximately one ton. The relief of the surrounding landscape is engraved on it based on data from the National Geographic Institute, with bronze details indicating the visible points. The table is also accessible for the visually impaired thanks to its tactile elements. The project, carried out by local organizations such as Qualité-Village-Wallonie and the municipality of Aubel, is unique in Belgium.

At this point, history and landscape converge. The MN18 observation bunker, a silent witness to the Second World War, still stands as a reminder of a turbulent period. From the bunker, you also have a unique view of the surrounding hilly landscape. Next to the bunker is the Knuppelstock orientation table, a platform that indicates the names and directions of villages, hills, and landmarks in the area. It's an ideal spot to get to know the region better and to enjoy a panoramic view of the border area between the Netherlands and Belgium.

Wonderful single track with deliciously scented wild garlic on both sides.

INFO board [nl]: Mill Nekum to Prins Bisschopssingel The Roer en Overmaas water board has widened the Jeker from the Nekum mill to the Prins Bisschopssingel in Maastricht to prevent flooding. The construction of a fish ladder removed the fish migration bottleneck at the mill (until 1930, glaze was ground here to make pottery waterproof). Fish can now easily pass the mill to lay their eggs upstream, among other things. In the Aquadra project, the water board is working across borders with ten water managers in South Limburg and Belgium to further improve water quality and prevent flooding in the catchment areas of the Jeker, Voer, Berwijn and Geul.

Text board [see photo] Gravel pit Savelsbos Geological monument 'Gravel pit Savelsbos'. From Roman times until around 1950, a mixture of sand and gravel was excavated in this pit to improve and harden roads. Around 1 million years ago, the Maas flowed from Eijsden towards Cadier en Keer. At the end of this period, the Maas valley was filled with a mixture of sand and gravel. The sand, gravel and stones present come from the Vosges and the Ardennes.

There is a winery behind the bridge. Note that it is not open on Sundays. It is best to research the opening times before the hike.

Magisterial viewpoint over the quarry and the surrounding area of Sint-Pietersberg. The viewpoint is always accessible between sunrise and sunset. The stairs to the quarry area have 215 steps. This staircase with access to the quarry is open from September 1 to April 1 from 9 a.m. to 5 p.m. and from April 1 to September 1 from 8 a.m. to 8 p.m. Dogs are not allowed on the stairs and in the quarry. Source: https://www.natuurmonumenten.nl/natuurbanden/sint-pietersberg

The bridge and bike look very idyllic in combination with the river