Tickets:

Colosseum, Forum, and Palatine Hill (all combined under one ticket)

Tickets for the Colosseum and the Vatican Museums often sell out as soon as they become available.  If you buy tickets through a reseller, verify the entrance time, as sometimes the times given are pickup times at the reseller office and not the actual entrance time at the site.

Borghese Gallery

Vatican Museum

The Roma Pass is a combo ticket good for sights (including the Colosseum/Forum area and Borghese Gallery), in addition to a 2 or 3-day public transit pass.  If you choose this option, please remember, you must reserve entrance dates and times for the Colosseum and the Borghese Gallery as well.

What’s Happening:

In Rome Now has the latest for concerts, exhibitions and more.

Getting Around:

ATAC has route planning information for the local public transit service.

Trenitalia is the national train operator for journeys near and far.

Italo is a private high-speed train service connecting the major Italian cities.

Seeing the Pope:

The official Papal Calendar.

Weather:
Weatherbase lists the year round average temperatures.