Use the image below to answer the following question:
An image of the inside of a circular building. The walls are supported by cylinder-shaped objects have many square depressions and openings in them. The circular walls meet at a single point at the top.
© Neil Emmerson/Robert Harding World Imagery/Universal Images Group/Image Quest 2016
What feature does this building have that tells you it is of Roman design?
curved dome
square windows
columns
marble
(PLEASE ANSWER IT RIGHT)