All the way from Las Vegas, Rick Harrison and his son Corey - members of the celebrated cast of US reality series "Pawn Stars" were here Thursday for their debut Asia tour. They called the Taj Mahal "priceless".

The show, aired on History TV18, chronicles the daily activities of the Pawn Stars - patriarch Richard "Old Man", his son Rick, grandson Corey "Big Hoss" and also, Corey's childhood friend, Austin "Chumlee" Russell.

It revolves around the three generations of the Harrison family, who jointly run the family business. The show depicts the staff's interactions with customers, and how they haggle over artefacts meant for sale or pawn. It also follows the interpersonal conflicts among the cast.

Since the launch of History TV18 in India in 2011, the show has garnered positive reviews in the country, and thus, the cast of the show decided to pay their first visit here.

As part of their Asia tour, they are visiting India only.

They landed in Delhi Wednesday, and left early morning for Agra. The travelling tired them out, but the father-son duo readily posed with their fans with the Taj Mahal as a perfect backdrop.

The Harrisons value artefacts often, but when asked to value the Taj Mahal, one of the seven wonders of the world, Rick told IANS: "Priceless!"

The duo was amazed to see the intricately built monument, built by the by Mughal emperor Shah Jahan in the 17th century.

They even shot a promotional trailer for the channel, and later, took a guided tour of the monument, and their keen interest in its history was evident from their inquisitiveness.

Rick said he would love to visit here again, but without any cameras to follow them.

The "Pawn Stars" will leave for the US Friday evening.