The following places are unlocked by reaching the maximum relationship with the following people:

Lost cave in Sim quarter: 100% relationship with Ewan Watahmee.

Old broken down school bus near the thrift shop: 100% relationship with Giuseppi Mezzoalto.

Garbage can near the entrance to Club Xizzle in Glasstown : 100% relationship with Phoebe Twiddle.

Projection booth (door behind the snack counter of the cinema in Glasstown): 100% relationship with Theresa Bullhorn.

Hole behind the poster in the jail: 100% relationship with Detective Dan De Mann.