Khmer architecture reached its peak during the Angkorian era (9th to 14th centuries AD). Some of the finest examples of architecture from this period are Angkor Wat and the structures of Angkor Thorn.

Today, most rural Cambodian houses are built on high wood pilings (if the family can afford it) and have thatch roofs, walls made of palm mats and floors of woven bamboo strips resting on bamboo joists. The shady space underneath is used for storage and for people to relax at midday. Wealthier families have houses with wooden walls and tiled roofs, but the basic design remains the same. 

The French left their mark in Cambodia in the form of some hand some villas and government buildings built in neoclassical style–Roman esque pillars and all. Some of the best architectural examples are in Phnom Penh, but most of the provincial capitals have at least one or two examples of architecture from the colonial period. Most modern structures are influenced by the wedding-cake school of architecture from Thailand or China, although a number of buildings are going up in neocolonial style.