Misc: How many dice are used in Backgammon?

Questions

Name of the city Japanese immigrants settled in California's rural areas in the early 1900s?

An astronomer named Percival Lowell founded this observatory in 1894?

Where is the Highland Park Ford Plant?

Where is the Rose Bowl located?

When completed in 1931, it was the tallest building in the world, at one-fifth of a mile high?