Do you know anything about Rome? Do you know an websites about rome?

I need one or more websites that might answer one or more of the following questions:

1.What is Rome's historic centre and what major historical destinations can be found there now?

2. What was the Roman Forum used for in ancient times?

3. What can we find underneath the city of Rome?

4. Briefly explain the history behind the restoration program to save the Colosseum

5.What was found under the Vatican during the construction of a parking lot in 1999?

6.What is the EUR?

7. How did World War II affect the EUR?

PLEASE. Do not break your head giving me sites for each question. Just a few sites answering questions would do!