ARCHAEOLOGY n.
The science or study of antiquities, esp. prehistoric antiquities, such as the remains of buildings or monuments of an early epoch, inscriptions, implements, and other relics, written manuscripts, etc.
ARCHITECTURE n. 2 definitions
The art or science of building; especially, the art of building houses, churches, bridges, and other structures, for the purposes of civil life; -- often called civil architecture. Many other architectures besides Gothic. Ruskin.