Depending on how much time you have in Rome, you should consider skipping the Coliseum, The Sistine Chapel, The Forum, and all museums on your first day. Why? Because you’ll be too tired to enjoy them. Further, Rome offers lots of amazing tourist attractions for free, such as the Pantheon, The Trevi Fountain, and Piazza Navona.
Trajan's Column - Translated, the inscription reads: The Senate and people of Rome [give or dedicate this] to the emperor Caesar, son of the divine Nerva, Nerva Traianus Augustus Germanicus Dacicus, pontifex maximus, in his 17th year in the office of tribune, having been acclaimed 6 times as imperator, 6 times consul, pater patriae, to demonstrate of what great height the hill [was] and place [that] was removed for such great works.