 Apart from the main road , there are five avenues , each planted in its own species and named accordingly : oak , poplar , birch , lime , and sycamore . The tree @-@ lined avenues give Barrhill a charming appearance . Wason had trees planted in an unusual pattern around the market square . Residents only noticed in 1975 when viewing an aerial photo that those trees form what appears to be the three circles of Trinity , with the two inner avenues possibly symbolising a crucifix . 
