First generation of pokemon. You can also find 8 gym-leaders here.
boulder  cascade  thunder  rainbow  soul  marsh  volcano  earth

Second generation of pokemon. You can also find 8 gym-leaders here.
You need a collector value of 100 to be able to travel here.
zephyr  hive  plain  fog  storm  mineral  glacier  rising

Third generation of pokemon. You can also find 8 gym-leaders here.
You need a collector value of 250 to be able to travel here.
stone  knuckle  dynamo  heat  balance  feather  mind  rain

Fourth generation of pokemon. You can also find 8 gym-leaders here.
You need a collector value of 800 to be able to travel here.
coal  forest  cobble  fen  relic  mine  icicle  beacon

Fifth generation of pokemon. You can also find 8 gym-leaders here.
You need a collector value of 1600 to be able to travel here.
basic  toxic  insect  bolt  quake  jet  legend  wave

Sixth generation of pokemon. You can also find 8 gym-leaders here.
You need a collector value of 3500 to be able to travel here.
bug  cliff  rumble  plant  voltage  fairy  psychic  iceberg