Actually China provided a set of generic rectangular buildings for countries with low funds for their project. Iceland carpetted theirs with the ice images, other countries have done the same showing other cultural images, whereas some have added on embellishments such as pillars/ domes/ nave doorways etc to resemble a traditional native architecture (these invariably turn out to look like tacky nouveaux riches villas), such as Iran's imo, though Pakistan's is good:
Iran
Pakistan