I believe the term refers to architectural styles which draw inspiration and influence from forms seen in nature. Or, architecture that is built to blend seamlessly into natural settings like cliffsides or forested areas.
In 1953 when prime minister Mossadeq nationalized the oil industry, United States stepped in and reinstated the pro-western Sha. Mossadegh saw the Anglo-Iranian Oil as an arm of the British government regulating much of Iran's oil, pushing him to nationalize the Iranian oil industry.
Lack of equipment i guess
C. built a fantastic city in the Andes where stome masons fitted gigantic blocks of stone without using mortar.
