Next Sunday, February 2, back #UnaDomenicaAlMuseo , and the Colosseum, the Roman Forum and the Palatine, along with other monuments, museums and archaeological sites, will be free admission.
In these days when admission is free it is not possible to make reservations but you need to go directly to the queue at the entrance. Tail that will, of course, be rather long.
To avoid long queues you can try to go in the afternoon just before closing (around 15.00), otherwise it is better to go on other days when you can visit it more calmly.
Among others will also be free:
Villa Adriana and Villa D’Este
the Borghese Gallery
the Baths of Diocletian and the Baths of Caracalla
the Crypta Balbi
the National Gallery of Modern and Contemporary Art