Belgium

Belgium packs an unusual concentration of scientific institutions, engineering landmarks and medieval cities into a country small enough to cross by train in under two hours. For school groups, it offers a rare combination: laboratory-grade science venues in Brussels and Leuven alongside cobbled squares and canal towns that make the history of European trade tangible.

Students can stand inside the Atomium's stainless-steel spheres, a 1958 model of an iron crystal magnified 165 billion times, and study particle physics and space science at the Euro Space Center in Transinne, where astronaut-training simulators are used for structured student programmes. The Royal Belgian Institute of Natural Sciences in Brussels holds Europe's largest dinosaur gallery, including the Bernissart Iguanodon skeletons excavated from a coal mine in 1878 — original specimens rather than casts. Few countries let a group examine genuine Cretaceous fossils in the morning and tour a working hadron-therapy or brewing-science facility in the afternoon.