The area is said to be haunted by headless horses, especially in the vicinity of a sunken lane to Welwyn village.
Sunken lanes are trackways, which pass below the level of the surrounding countryside, often with steep banks. Many are considered very ancient, the remnants of old trackways perhaps dating as far back as the Bronze Age.
The haunting is said to relate to a battle in the area between the Vikings and the Saxons in AD1002.
Directions: Burnham Green is to the North of Welwyn Garden City, on a minor road from Harmer Green.