Kim Kardashian knows how to steal the show — even when she’s visiting the home of the Pope — and an eye-catching lace dress will do the job. Every time.

Kim did the opposite of blend in as a tourist Monday as she checked out Vatican City with Kate Moss and her daughter, Lila Grace. Kim was dressed in a striking off-the-shoulder white lace dress … sure to make a nun or 2 blush.

Sources close to Kim tell TMZ she’s in Italy for business meetings this week along with her biz partner Tracy Romulus, makeup artist Mario Dedivanovic and hairstylist Chris Appleton … so it’s no wonder she looks fab.

There are no exceptions to the strict dress code in the Sistine Chapel though, so we’re told KK fully covered up her dress with a leather jacket when she went inside Pope Francis’ residence.

And, we know what you’re wondering, but no … she did not have an audience with His Holiness, Pope Francis.

Along with the Sistine Chapel, Kim also took in a tour of St. Peter’s Basilica in the Vatican and visited the Colosseum in Rome on Sunday.

Talk about a Holy See.