The couple – who has been dogged by divorce rumors in recent times – seemed happy in the ancient city.
They were spotted going into different stores and enjoying the sites as if they were starring in one of her romantic movies.
The couple - who have three children together - were dressed in winter layers, with the 'Pretty Woman' star wearing a long grey coat to stay warm.
And it appears that they are having a wonderful time together after they were dogged by marriage rumor problems last year.
The couple went to Rome without their kids Hazel, 14, Phinnaeus, 14, and Henry, 11.
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Oscar winner Julia, 51, was in great spirits after her husband Danny had gifted her with roses during a romantic meal the night before.
They went on a shopping spree after Roberts bought a bag in the Givenchy store.
They also bought a hand-made leather bag in the old leather shop of designer Federico Polidori.
The lovebirds then treated themselves to a breakfast in the ancient Moriondo & Gariglio chocolate shop behind the Pantheon.
Julia and Danny met on the set of her film The Mexican in 2000, while she was still dating actor Benjamin Bratt.
At the time, Moder was married to Vera Steimberg. He filed for divorce a little over a year later, and after it was finalized, he and Julia wed on July 4, 2002, at her ranch Taos, New Mexico.
Talking about her husband she revealed recently: "'When I think about what makes my life my life, and just makes sense, and just shines inside of me, it's him. Everything has come from that.'
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