Hadrian's Wall.

Hadrian's Wall runs from Carlisle in the West to Newcastle in the East. Following the wall is 73.5 miles (80 Roman miles) of footpath. The wall was started around AD122 by Emperor Hadrian and was built to prevent attacks from the Pictish tribes from Scotland. Originally the wall is said to have been 6 metre high, though, at most it is now 1.5 metres.

Every Roman miles along the wall there was a fort and every 1/3 mile a watch tower. Though most of the wall, forts and watchtowers are now little more than foundations you still get a sense of awe at the man power and effort required to build such a feat. It an impressive place to visit, with (in the right weather) stunning views of a beautiful part of the country.