Rome,
The Colosseum.

Important: Security measures have been increased at the Colosseum and the authorities are currently telling all visitors to arrive approximately one hour before desired entrance time. Please see this page for the most up to date information.

Your ticket also gives you skip-the-queue access to the Roman Forum and Palatine Hill areas, and you may choose to visit either on the same day as your Colosseum visit, or the day after said visit.

This ticket also includes visiting the recently opened 'Imperial Ramp' - see blog post.

A little more information on types of tickets that you may find useful:

All of our Colosseum tickets are skip-the-line ones, and there are dedicated ticket desks for those that have booked in advance - you will never need to join the often gargantuan queues for people who are trying to buy tickets on the day of their visit! Your confirmation vouchers will have full instructions and directions on where to go when in Rome.

Effectively we sell two types of tickets: this, the 'standard', means that your visit time will be allocated by the Colosseum staff, and will only be allowed from 2.00 PM onwards. You'll pass through security and then go to the special pre-booked ticket pickup point and exchange your vouchers for tickets. If the Colosseum has reached its maximum capacity then you'll be told that you may have to wait for a period of time before entering, as the staff will always give priority to 'Gold' entrance times first.
If you're visiting in low season then this option is fine, but we're loathe to recommend it at busier times as the security queue followed by a wait until numbers have subsided may be too much for you.

We also sell a 'Gold' (fixed-time) ticket that allows you to choose your visit time when placing an order and, most of the time, that's when you'll be granted admission. You'll pass through security and then go to the special pre-booked ticket pickup point and exchange your vouchers for tickets. If the Colosseum has reached its maximum capacity then you'll be told that you may have to wait for a small amount of time, but the staff will always give priority to 'Gold' entrance times. If visiting between Easter and the end of Summer then we would not hesitate to recommend 'Gold' tickets.