The Mandaellah Effekt

Looks like a normal farmhouse.

Item #: SCP-XXXX

Object Class: Euclid

Special Containment Procedures:

Description: SCP-XXXX is an old farmhouse in a field in ██████, California. The outside of SCP-XXXX looks like a normal farmhouse. When entered they began to hallucinate a different interior of the farmhouse, which begin to cause headaches, vomiting, and motion sickness.

Personnel is to stay no longer than ten minutes. If caught staying there for more than the exceeded limit of time, they are to be denied access to there no longer.

Addendum: [Optional additional paragraphs]