Medical Institution, Red Cross, Hospital
This is a hospital. There is a big "cross" sign in front of the building, which is very conspicuous, so that people seeking medical treatment or first aid can find it quickly. Hospitals are usually places where people receive medical treatment and nursing, and buildings are mostly designed with white exterior walls. Except for au by KDDI and Docomo platforms, which depict blue or gray "cross" signs, other platforms all display red "cross" signs.
This emoticon is often used to represent hospitals, clinics, medical institutions, etc. It can also mean first aid, medical care and medical hygiene.
