There's always someone trying to make a dollar.

William Thomas Cain, Getty Images

Online scalpers are using Craigslist and eBay to sell SEPTA train tickets for the Pope's visit to Philadelphia at the end of this month for as much as $40. The face value of the tickets are $10.

Scalpers might want to do business elsewhere though because the city still has tens of thousands of train tickets left for sale.

Two hundred thousand tickets went for sale on July 20, and city officials said they still have nearly 100,000 tickets left.

With tens of thousands of tickets left for only $10, SEPTA is urging commuters use their website to purchase rail tickets and not an online scalper.

The Pope's two big public events in Philadelphia will take place on the Benjamin Franklin Parkway. He’ll attend the closing ceremonies of the World Meeting of Families on Sept. 26, and celebrate Mass late Sunday afternoon. In addition, he's also scheduled to give a speech on religious freedom and immigration at Independence Hall on Sep. 26.

Ten thousand tickets are being made available to the general public on a first-come, first-served basis for the Pope's speech at Independence Hall through the website worldmeeting2015.org/tickets. Tickets will be made available starting at noon today, and there's a limit of four per person.

For those wanting to get within 2.5 blocks of the Pope when he gives his Mass on Sept. 27, tickets will be needed, however, the event is open to the public and only 15 percent of those in attendance will get their hands on special tickets. The rest of the public will have to settle being at least 2.5 blocks away from the Pope. Officials estimate that nearly 750,000 people will attend the Mass. Details on tickets have yet to be released.

The Associated Press contributed to this report.