What city is signified by the "D" stamped on some US coins?

More Questions:

What popular sport did James Naismith invent?

What kind of clay oven is used to make Indian dishes like naan and chicken tikka?

Gouda cheese comes from what country?

What D.H. Lawrence novel with a colorful title was banned in the U.K. following a 1915 obscenity trial?

What US city is known as the "Biggest Little City in the World"?

What is the purpose of "seeding" a cloud?

What is sulphur also known as?

What breed of dog is Spuds MacKenzie?

What TV show takes place in the fictional city of Quahog, Rhode Island?

What athlete had a part in the movie "There's Something About Mary"?

'An Inconvenient Truth" is a 2006 documentary film directed by Davis Guggenheim about what subject?

After the Civil War, which Union general became the first president of the NRA?

What city hosted the 2012 Summer Olympics?

In March of 1968, Cesar Chavez announced a worldwide boycott of what California food product?

Who wrote the dystopian novel "A Clockwork Orange"?