| Similarity | Rank | |
|---|---|---|
| prehistoric | 0.800 | 22958 |
| pre-historic | 0.798 | 93508 |
| carvings | 0.789 | 27394 |
| pre-Columbian | 0.776 | 84702 |
| archeological | 0.775 | 33105 |
| fossils | 0.769 | 23150 |
| archaeological | 0.747 | 15673 |
| megalithic | 0.747 | 94686 |
| outcrops | 0.742 | 57445 |
| artifacts | 0.740 | 11195 |
| inscriptions | 0.738 | 29801 |
| outcroppings | 0.737 | 88718 |
| hieroglyphs | 0.734 | 91704 |
| landforms | 0.734 | 86204 |
| archeologists | 0.732 | 64340 |
| Anasazi | 0.732 | 91140 |
| caves | 0.731 | 13377 |
| engravings | 0.718 | 46447 |
| Prehistoric | 0.717 | 79408 |
| Archeological | 0.716 | 83730 |
| archaeologists | 0.704 | 31593 |
| pyramids | 0.704 | 27530 |
| arrowheads | 0.703 | 92162 |
| sandstone | 0.702 | 24592 |
| basalt | 0.702 | 47675 |