Per 
Item #: SCP-3498
Object Class: Euclid
Special Containment Procedures: A two kilometer buffer zone should be kept between the area of SCP-3498 and all civilian areas. The site where SCP-3498 stands is to be disguised as demolition zone with MTF Omega-13 ("Demolition Demons") to carry out security measures and guarding of the SCP-3498 area. Any civilian or unauthorized personnel caught entering the buffer zone or SCP-3498 should be immediately detained via non-lethal force and questioned.
MTF Delta-12 ("Hornet Hunters") is to conduct all experimentation and exploration of SCP-3498. Any anomalous object or entity that attempts escape from SCP-3498 is to be immediately detained and tested in separate containment cells at Site-13.
Description: SCP-3498 is an abandoned parking garage located at ██████████████, Albuquerque, New Mexico. The complex consists of three stories when viewed from the exterior. The building when measured from its external point of view measures up to approximately 9.144 meters in height, length, and width. To date, no entrance to lower levels of the complex have been found, though they are theorized to exist. All attempts at reaching these lower levels via drills and explosives have proven unsuccessful.
The building mostly consists of standard concrete and sediment, however, traces of an unidentified substance have been found within the first level's walls. Research into the substance is still ongoing.
The inside of the structure appears to not match the exterior of the building. More than four(4) more levels exist on the inside than what's physically possible. When ascending the levels, the ground appears to follow the subject when ascending, each level appearing to be on ground level despite being above ground. When the unobservable floors are examined from the outside when a subject is in them, they appear always as if they're on the first level.
Addendum: On 4/13/20██, a previously undiscovered object was recovered from the third floor. It was a platinum medallion that belonged to Agent ███████ before he disappeared. A carving of a five-pointed star with a singular eye has been engrained on it. Investigations on possible Fifthist connections are ongoing.
Addendum: On 4/16/20██ Agents ████ and ██████ have since gone missing after taking chase to a previously unnoticed entity within SCP-3498. Three hours afterwards, surveillance has captured an apparent sinkhole opening on the first floor. Drone exploration is pending approval.
