Dan Gross: Miley Cyrus visits the Betsy Ross House

MILEY CYRUS LINED UP like any other historically minded tourist at the Betsy Ross House on Tuesday afternoon and bought three tickets for her and friends.

Cyrus and company listened for a few minutes as Betsy Ross (Carol Spacht) talked about her work, then continued their self-guided tour of the house.

The singer/actress has been staying on Washington Square with fiancé Liam Hemsworth, who was busy Tuesday filming "Paranoia" with Harrison Ford outside and inside the Beasley law firm's offices at 12th & Walnut.

On Monday, Cyrus shopped on South Street and picked up a $14 black-and-white-striped cardigan at Greene Street (7th & South).

Cyrus and Hemsworth should be gone Monday as the film goes on hiatus until December, as Hemsworth shoots "Catching Fire," the "Hunger Games" sequel.

Michael Phelps stayed in a suite at the Borgata in Atlantic City on Monday night after playing poker there and later partying with an attractive blonde at mur.mur nightclub.

Our spies weren't sure if his companion was new girlfriend Megan Rossee, but they believe that she was.

Also no word on whether the Olympic champion was carrying Louis Vuitton luggage, which he is now endorsing.

The poker enthusiast plays regularly at Borgata and has participated in tournaments there. Our spies say most people played it cool and left Phelps alone.

The swim sensation is back in A.C. Sept. 22 to host a party at the Pool After Dark at Harrah's.

La Colombe coffee founder and danger-seeker Todd Carmichael has landed his own Travel Channel series. "Dangerous Grounds" premieres at 10 p.m. Nov. 5 and then airs Tuesdays starting at 9 p.m. Nov. 13.

The show is eight hour-long episodes that took Carmichael to Haiti, Bolivia, Madagascar, and Borneo as he searched for rare strains of coffee beans. In 2008, Carmichael set a world record for the fastest solo journey to the South Pole.

Phillies fans are more friendly to Scott Rolen when he's out to dinner than at the ballpark. Rolen was not booed Monday night while dining with two Cincinnati Reds teammates at Ralph's (760 S. 9th).

The guys had calamari, veal Parmesan and a $90 bottle of red wine. Rolen, who was greeted by a few fans, paid and left a nice tip.

Actor Julian McMahon, best known from "Nip/Tuck," stopped at Jar Bar (113 S. 12th) Tuesday afternoon for a Boost Juice with carrot, apple, celery and parsley.

He was down the street working on "Paranoia."

David Schwartz, who owns the Sophy Curson (18th & Sansom) boutique, was thrilled to see Sigourney Weaver wearing a green silk tunic from his store (which retails for $300) on an episode of "Political Animals."

The USA series ended Sunday, but Schwartz, who became chummy with Weaver over her several visits to the shop, hopes for another season and looks forward to catching up with the actress at Lincoln Center in New York, where she soon stars in Christopher Durang's play "Vanya and Sonia and Masha and Spike," opposite David Hyde Pierce.

98 WOGL has announced the hiring of Nicky G to host from 5 to 9 p.m. Sundays as well as to take on vacation and fill-in duties. Nicky G seems to be replacing Joe Mama, who suffered a serious head injury in a fall at home in July. Joe Mama (real name David Redpath) continues to recuperate in a rehab facility. Nicky G previously worked at Atlantic City's Boss 97.1, Shark 103.7 and more recently WAYV.

A WOGL spokeswoman insists "Nicky G is not a replacement but an addition to the WOGL air staff. When Joe Mama is recovered, he'll return to 98.1 WOGL."