Rome is not only the Colosseum but is rich in other places, museums and monuments that tell its long history, from the Ancient Rome of the Imperial Forums to the Papal Rome of St. Peter’s Basilica and the Vatican, from the Renaissance and Baroque Rome of Piazza Navona and of the Borghese Gallery to the Rome of Trastevere and Campo de’ Fiori
For this reason, packages are available which, in addition to access to the Colosseum, Roman Forum and Palatine Hill, also include access to other beautiful museums in Rome:

Pass for Colosseum + Sistine Chapel + Vatican Museums & St. Peter Basilica
Colosseum + Sistine Chapel + Vatican Museums & St. Peter Basilica: Full Day Tour

Colosseum + Castel Sant’Angelo
Rome Underground Pass + Colosseum
Colosseum + The Doria Pamphilj Gallery
Papal Gardens & Picnic + Colosseum