Lettenberg en Lettenbergkruisweg, Lokerstraat, 8956 Heuvelland, Belgium
There are 4 bunker shelters were constructed in 1917 and were used as British HQ. Lettenberg was an significant location as it was the only high ground in the area and was ferociously bombed and important battles took place. Today is free to enter and walk around. You can go to the top of the hill