Great Britain Tour Guide. Environnent Perfection. First settlers appeared on the territory of the modern Great Britain yet during prehistoric times, so there are more than many old buildings, interesting museums and historic landmarks in the country. Stonehenge remains one of most famous and mystic symbols of the country. There are many theories about the purpose of the monument. Some scientists believe that this is an ancient religious monument, and others assume it is an old observatory. London is the oldest city in the country. It was founded yet during the times of the Roman Empire, and at that time London was known as Londinium. There are several buildings that remind of first settlers and that period in the history of the city. The border with Scotland is the location of a very interesting landmark Hadrian's Wall. The wall was built in the 2nd century by order of Emperor Hadrian and was named after him. The purpose of the wall was to protect the city from barbarian attacks. City gates in Colchester and Lincoln have survived till our days. These ancient cities also feature ruins of historic buildings, old temples and protective facilities. Despite the fact that the exploration of the country started yet during the prehistoric era, there are many wonderful pieces of nature in the country. Kent Country is considered the most picturesque and beautiful part of the UK. Sometimes it is even called "the garden of the United Kingdom". Another unique nature reserve has appeared near Lake Loch Ness, which is famous because of numerous legends. The largest national park in the country is located in the so called Lakeland. Here travellers will be offered to participate in excursions to the Hebrides and the Orkney Islands, as well as in rides to the "Bird Island" officially known as Bass Rock.