Petroglyphs are more commonly known as what?

More Questions:

What country's population hit the one billion mark in May 2000?

The Houston Comets won what league's first ever championship title?

Is it true that the Special Sauce on a Big Mac is Thousand Island Dressing?

Who said "He that drinks his cider alone, let him catch his horse alone."?

First minted in 2000, whose likeness was on the face-side of the US dollar coin?

In the Anglo-Saxon poem, who killed Grendel?

What author's name means "two fathoms deep"?

In 1964, Michelangelo's Pietą was on display at what major event?

Tashkent is the capital of which country?

In what year did Abe Vigoda from the TV show "Barney Miller" die?

The Scottish outlaw Robert Roy MacGregor was better known as?

What was the coronation year of Queen Elizabeth II?

What year was Julius Caeser assassinated

Which artist founded the record label "Aftermath Entertainment"?

Which country owns the island of Corfu?