| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when was the inca road system built | 0.91 | 0.1 | 6335 | 36 |
| how was the inca road system built | 1.37 | 0.9 | 8189 | 82 |
| what was the inca road system | 1.94 | 0.4 | 500 | 20 |
| how long was the inca road system | 1.1 | 0.7 | 7042 | 93 |
| how did inca develop their road system | 0.3 | 0.5 | 5681 | 67 |
| inca road system facts | 0.58 | 1 | 8873 | 36 |
| road system of inca | 0.28 | 1 | 3984 | 44 |
| inca road system wikipedia | 0.73 | 0.6 | 3582 | 53 |
| did the inca build roads | 1.22 | 0.7 | 3684 | 28 |
| why was the inca road system important | 0.92 | 1 | 3196 | 17 |
| map of inca road system | 0.5 | 0.5 | 6047 | 86 |
| inca empire road system | 0.5 | 0.7 | 9829 | 25 |
| foot highway built by the inca | 0.76 | 0.4 | 7132 | 89 |
| inca road system 18000 miles | 1.95 | 0.2 | 7817 | 6 |
| who used the inca road | 0.08 | 0.2 | 3141 | 62 |
| how many roads did the inca have | 1.5 | 0.2 | 9311 | 34 |
| why did the inca make a road | 1.94 | 0.5 | 2453 | 78 |
| how did the inca construct buildings | 0.33 | 0.5 | 7822 | 86 |
| inca roads and bridges | 0.02 | 0.2 | 6894 | 100 |
