- 跡 — trace; mark; remains
- 足跡 — footprint; track; trace
- 足跡 — one’s record; achievements
- 史跡 — historic site
- 遺跡 — (archaeological) ruins; remains
- 奇跡 — miracle.
The left-side radical あしへん(足) signals a foot/step. Add the sound element for セキ, and the whole character paints the idea of footsteps left behind — the marks, traces, or ruins that remain after something has passed.
 
       
            