When did the Sydney Opera House officially open its doors to the public?

More Questions:

What Olympic athletics competition includes ten different events?

In nautical terms, what does "Port" mean?

What chemical reaction during roasting is chiefly responsible for giving green coffee beans their flavor?

What cousin of the glockenspiel was named for its ethereal, "heavenly" sound?

The seismic belt called the Ring of Fire surrounds what body of water?

The island country Grenada is also known as what?

Which is the highest waterfall?

What year did actress Betty Grable die?

What pop star posed naked and pregnant on the August 2006 cover of Harper's Bazaar?

Who was the star of the 1928 movie "Steamboat Willie"?

Who played Vincent Vega in "Pulp Fiction"?

What was the first decade revisited by VH-1's "I Love the..." series?

In the movie "Princess Mononoke', the Forest Spirit most resembles what animal?

The British passed the Intolerable Acts as punishment for what act by the American colonists?

Which region of France do Germans call Lothringen?