The correct answer to this open question is the following.
A sacred shrine where a priest or priestess spoke for a god or goddess: Oracle.
In ancient civilizations such as the Greek culture, they used to build impressive temples such as the Delphi temple, which precisely was built to consult the Oracle. People visited the city of Delphi to speak with the Oracle that was such as seer that could have access to the gods and see the future.
