Answer: Switzerland
Notes: More than 1,000 Roman artefacts were discovered in Lake Neuchatel, Switzerland, providing insights into life during the Roman Empire. Lake Neuchâtel is the largest lake entirely within Switzerland and lies at the base of the Jura Mountains. It was formed during the last Ice Age (period of extensive glaciation about 15,000 years ago) due to melting glaciers carving valleys. The lake is about 38.3 kilometres (km) long and 8.2 km wide, covering 212.33 square kilometres (sq km).
