an outdoor theater or performance area, often built into the side of a hill with rows of seats surrounding a central stage
amphitheater
a bridge or channel built to transport water from one location to another, often over a long distance
aqueduct
to help or encourage
facilitate
a public building or large stately church that is round at one end and has columns supporting the roof or dome
basilica
a strong building material made from a mix of substances
concrete
the use of science and technology in the design, building, and use of machines, structures, or processes
engineering
a picture made by painting on wet plaster on a wall or ceiling
fresco
the art or skill of public speaking
oratory
the movement of people away from their ancestral homeland
diaspora
believing in or worshiping more than one god
polytheistic
a person trained or forced to fight other people or animals in an arena in ancient Rome for the entertainment of others
gladiator
the spread of people, ideas, technology, and products from one culture to another
cultural diffusion
a series of horizontal and vertical lines that cross each other to divide an area into sections
grid
a state that is controlled and protected by another
protectorate