A federal appeals court struck down almost 110-year-old regulations Friday that required any paid tour leader to pay $200 for a license and pass a 100-question multiple-choice test.

While those rules were meant to ensure that tour guides knew what they were talking about, the court ruled that the regulations imposed too much of a burden on free speech and were unconstitutional.

Unlicensed tour guides had faced a $300 fine or 90 days in jail before the decision.

A judge also said the general exam failed to accurately test the knowledge needed for specific tours like Segway, ghost and the increasingly popular food tours.

So, read up on your D.C. facts and maybe you could start your own tour guide business.