The two famous icons of Sydney Harbour, Australia. First, on the left, is the Sydney Harbour Bridge, which is a 1,149 foot steel arch bridge that was built and completed in 1932. It measures in at 440 feet tall, making it the tallest steel arch bridge in the world. Second, on the right, is the Sydney Opera House. Construction began on the performing arts centre in 1963 and was completed in 1973. Today, the opera house now has the title of UNESCO World Heritage Site and is one of the most well known and distinct buildings in the world.

A view of Matsumoto Castle, its bridge, and moat, which is located in the city of Matsumoto, Japan in the Nagano Prefecture. The castle, which was built by Shimadachi Sadanaga, started construction in 1504. At that time, the castle was known as Fukashi Castle. It is believed that construction was completed by 1594. Matsumoto Castle was in use from 1504 to 1868 and rule by many different lords, and has been renovated multiple times over the years.

Spanning the Arno River in Florence, Italy is the Ponte Vecchio. This medieval bridge dates back over 1000 years, but has been rebuilt and repaired many times, such as during the 1966 floods. During World War II, the bridge was spared by the Germans, unlike other bridges in Florence. The bridge has always hosted shop owners and merchants, who display their goods on tables to potential buyers.

Connecting the city of San Francisco to Marin County is the world famous Golden Gate Bridge. Completed in 1937, it was once the longest suspension bridge in the world. The bridge measures in at 10,981 feet long, 90 feet wide, and up to 746 feet high. Alcatraz can be seen on the left side of the bay, the city of San Francisco on the right, and in the background the Bay Bridge, Oakland, and Berkeley. This view is from the Marin Headlands.

Since May 24, 1883, the Brooklyn Bridge has been an icon of New York City. This bridge that spans the East River is one of the oldest suspension bridges in the United States. The bridge was originally named the New York and Brooklyn Bridge until 1867. In 1964, the Brooklyn Bridge become a National Historic Landmark.