| Answer | Crossword Clue |
|---|---|
| WONDERLAND | Site of underground adventures |
| SIAM | Site of Anna's adventures |
| SILO | Underground launch site |
| COALMINE | Underground work site |
| CATACOMB | Underground burial site |
| SILO | Underground missile site |
| SILO | Underground missile launch site |
| ALTAMIRA | Underground art site in Spain |
