| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| penrose stairs illusion | 0.08 | 0.7 | 8599 | 45 | 23 |
| penrose | 1.58 | 0.2 | 911 | 78 | 7 |
| stairs | 0.9 | 0.8 | 3610 | 92 | 6 |
| illusion | 1.27 | 0.5 | 5159 | 18 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| penrose stairs illusion | 1.64 | 0.4 | 7139 | 24 |
| penrose stairs illusion explained | 0.93 | 0.2 | 1364 | 2 |
| penrose stairs in real life | 1.62 | 1 | 3011 | 67 |
| why are the penrose stairs impossible | 0.05 | 0.2 | 914 | 13 |
| how to make penrose stairs | 0.84 | 1 | 356 | 50 |
| penrose stair yahoo answers | 0.11 | 1 | 1961 | 35 |
| painting of stairs optical illusion | 0.68 | 0.6 | 9608 | 48 |
| roger penrose face illusion | 0.6 | 0.1 | 9928 | 25 |
| stair in hallway illusion | 0.54 | 0.8 | 7116 | 60 |
