In the late 20th century, modern architecture with straight lines and functional aspects was introduced, particularly in the Brutalist architecture that characterized government-built structures done in the Marcos period. During this period many of the older structures fell into decay due to the imposition of martial law. After the return of democracy in 1986, a new age of Philippine architecture came into focus through modernism. Early in the 21st century, a revival of the respect for the traditional Filipino elements in the architecture returned.