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

More Questions:

A luffa is a type of what?

What does the BMW logo represent?

What typewriter key was introduced by Remington in 1878, ending the need for two keys for each letter?

World boxing champion, Bob Fitzsimmons, had what middle name?

The Venice Cup is for women only playing what?

Christmas caroling began as what old English custom?

In the book "Animal Farm', what boar originally encouraged the other animals to rebel against Farmer Jones?

On the bank of which river does the Portuguese capital of Lisbon stand?

How fast, on average, do adult fingernails grow?

In 1972, who became the first TV title character to get an abortion?

How many Academy Awards was the film "The Sixth Sense" nominated for?

What was Maxwell Smart’s agent number on “Get Smart”?

What was the first state to allow women to vote?

The fear of some unknown evil is called what?

What band did Mark Wahlberg form shortly leaving "New Kids on the Block"?