Have you every thought about bringing that amazing antique you purchased on iCollector.com to "Antiques Roadshow" to be appraised? Fans of this hit PBS show know that seemingly ordinary items can turn out to be worth a fortune. In fact, some individuals who bring their antiques and collectibles to the experts at "Antiques Roadshow" find out they've had items worth millions of dollars in their possession all this time. Read on to learn more about the most valuable items ever appraised on "Antiques Roadshow."

$1.5 million: Chinese rhinoceros horn cups
In 2011, a man from Oklahoma brought a collection of 18th century Chinese cups he purchased in the 1970s to the experts at "Antiques Roadshow," and proceeded to smash the show's record for most valuable item. Carved from rhinoceros horns, the cups were valued at a whopping $1.5 million.

$1.07 million: Jade bowls
While Jinx Taylor's father was stationed in China with the U.S. Army during the 1930s and '40s, he collected jade bowls. Decades later, after inheriting the unusual collection, Jinx brought the bowls to "Antiques Roadshow" to be appraised. As it turned out, the bowls (which were likely purchased for less than $100 a piece), dated back to the 18th century and were worth an astonishing $1.07 million.

$1 million: Baseball card archive
Are you a baseball fan? Then you'll love this one. A woman whose family collected baseball cards and letters brought the valuables to "Antiques Roadshow," only to find out that they were worth a hefty $1 million. The memorabilia dated back to the 1870s. Apparently, the woman's great-great-grandmother ran a boarding house in Boston where the Red Stockings baseball players lived.

$800,000: Diego Rivera painting
A well-known muralist, Diego Rivera also crafted oil paintings. One masterpiece, "El Albanil," was purchased by Rue Ferguson's great-grandparents in Mexico around 1930. For years the painting hung in Rue's home until he one day decided to bring it to the experts at "Antiques Roadshow." It was then revealed that this 1904 painting was worth $800,000.

$673,000: Anthony van Dyck painting
Speaking of paintings, let's not forget about Anthony van Dyck. Purchased in a small antiques shop by a priest in the U.K., one of van Dyck's paintings was deemed a fake. However, in a surprising turn of events, when the painting was taken to "Antiques Roadshow" to be appraised, it not only turned out to be real, but worth $673,000.