Explanation

Opera House is widely regarded as one of the world's most famous and distinctive buildings.

Opera House is located in Sydney, Australia.

Explanation

Italy has the most 58 historical places in the world.

China has the second most 56 historical places in the world.

Germany has the third most 51 historical places in the world.

France and Spain have the fourth most 49 historical places in the world.

Explanation

The Sydney Harbour Bridge is a world-recognised Australian landmark, easily distinguishable due to its coat hanger shape and its enormous magnitude that soars above Sydney Harbour.