abstract
ancient
art
background
black
celtic
circle
crossing
culture
decor
decoration
decorative
design
element
endless
four
geometric
graphic
icon
illustration
infinite
interlaced
irish
isolated
knot
knots
knotwork
line
logo
loop
ornament
ornate
pattern
rectangular
seamless
shape
sign
square
symbol
tattoo
texture
traditional
tree
tribal
trinity
triquetra
white