This document is a project report submitted by Anandita Portia towards her Master of Science in Interior Designing. It discusses arches, which were the topic of her project. The report begins with an acknowledgment thanking those who helped and supported her project. It then provides definitions of key technical terms related to arches, such as abutment, intrados, extrados, springing line, crown, keystone, span, spandril, and haunch. Finally, it outlines and provides examples of different types of arches, such as flat arches, semicircular arches, horseshoe arches, segmented arches, Gothic arches, and more.