Related by context. Frequent words. (Click for all words.) 54 palisade 53 earthen berms 51 mounds 51 dirt mounds 50 burial mounds 50 Concrete barriers 49 earthen dams 49 obelisks 48 earthen walls 48 middens 48 granite stones 48 caissons 48 granite pillars 47 trenches dug 47 brick walkways 47 granite boulders 47 earthen levees 46 earthen wall 46 roadbeds 46 concrete pilings 46 rock outcroppings 46 sandstone cliffs 46 fortifications 46 dug trenches 45 cypress tree 45 limestone formations 45 retaining walls 45 bridge abutments 45 earthen 45 sycamores 45 mausoleums 45 bluffs overlooking 44 drainage basins 44 megaliths 44 fieldstone 44 stone slabs 44 medieval fortress 44 barbed wire fences 44 earthwork 44 courtyards 44 leafless trees 44 decomposed granite 44 lilac bushes 44 revetment 44 embankments 44 sycamore trees 44 hardpan 44 beech trees 44 granite slabs 44 bottomlands 43 Huge swaths 43 lean tos 43 concrete barriers 43 marble slabs 43 granaries 43 rock outcrops 43 brick facades 43 stupas 43 berms 43 burial grounds 43 earthworks 43 bulrushes 43 bas reliefs 43 brick chimneys 43 crypts 43 river bottoms 43 earthen berm 43 graves 43 wooden boardwalk 43 tall pine trees 43 cement slabs 42 pasturelands 42 trackways 42 concrete slabs 42 tombs 42 church steeples 42 latticed 42 masonry walls 42 irrigation canals 42 cupolas 42 trench dug 42 concrete footings 42 berm 42 rip rap 42 hillocks 42 forts 42 tidal creeks 42 arches 42 crushed limestone 42 earthen levee 42 excavated 42 tiled roofs 42 parklike 42 escarpments 41 moss covered 41 stonework 41 mounded 41 limestone 41 dry riverbeds 41 oak trees 41 lintels