[Answer] 6. A very popular monument is located at the harbor of this city which was designated a National Monument on October 15, 1924.

Step 1 : Introduction to the question "6. A very popular monument is located at the harbor of this city which was designated a National Monument on October 15, 1924. "

...1. New York 2. Phoenix 3. Los Angeles 4. St. Louis The monument I'm talking about is The Statue of Liberty. New York is the 27th largest state in America and New York is the third most populous state in the USA after California and Texas.

[Answer] Where is the world's largest natural harbor?

Step 1 : Introduction to the question "Where is the world's largest natural harbor?"

...The world's largest natural harbor is Sydney Harbour in Sydney, Australia. The city makes good use of this natural resource, locating many of the city's renowned attractions there. These include the iconic Sydney Opera House, the Sydney Harbour Bridge and the Sydney Aquarium. The harbor covers 21 square miles and is over 11 miles long. It is home to over 580 species of fish and includes many historically significant islands. Source: Reference.com

[Ans] What sunken battleship serves as a memorial to the Japanese attack on Pearl Harbor?

Step 1 : Introduction to the question "What sunken battleship serves as a memorial to the Japanese attack on Pearl Harbor?"

The USS Arizona Memorial, at Pearl Harbor marks the resting place of 1,102 of the 1,177 sailors and Marines killed on USS Arizona during the Japanese surprise attack on Pearl Harbor on December 7, 1941 and commemorates the events of that day. Today, thousands flock to the oblong floating memorial in Oahu, situated directly above the hull of the sunken battleship, to honor and pay tribute to the fallen and remember the events of that fateful day. The memorial, built in 1962, is visited by more than two million people annually.

[Answer] What sunken battleship serves as a memorial to the Japanese attack on Pearl Harbor?

Step 1 : Introduction to the question "What sunken battleship serves as a memorial to the Japanese attack on Pearl Harbor?"

...The USS Arizona Memorial, at Pearl Harbor marks the resting place of 1,102 of the 1,177 sailors and Marines killed on USS Arizona during the Japanese surprise attack on Pearl Harbor on December 7, 1941 and commemorates the events of that day. Today, thousands flock to the oblong floating memorial in Oahu, situated directly above the hull of the sunken battleship, to honor and pay tribute to the fallen and remember the events of that fateful day. The memorial, built in 1962, is visited by more than two million people annually.

[Answer] 8. The Statue of Liberty stands on Liberty Island in New York Harbor. But which country built and donated the statue to the United States?

Step 1 : Introduction to the question "8. The Statue of Liberty stands on Liberty Island in New York Harbor. But which country built and donated the statue to the United States?"

...1. England 2. France 3. Spain 4. Holland The Statue of Liberty was finally erected in 1886 and stands at over 305 feet high if you include the pedestal. It was donated by France in a gesture of friendship between 2 republics. It was sculpted by Frederic Auguste Bartholdi and Gustave Eiffel was the structural engineer. The light green colouring of the statue comes from the natural weathering of copper, which the exterior of the statue is made from.

[Ans] To tour the USS Arizona Memorial at Pearl Harbor, you must visit what Hawaiian island?

Step 1 : Introduction to the question "To tour the USS Arizona Memorial at Pearl Harbor, you must visit what Hawaiian island?"

The USS Arizona Memorial, at Pearl Harbor in Honolulu, Hawaii, marks the resting place of 1,102 of the 1,177 sailors and Marines killed on USS Arizona during the Japanese surprise attack on Pearl Harbor ...

Did you know:The memorial is part of World War II Valor in the Pacific National Monument. 

Step 2 : Answer to the question "To tour the USS Arizona Memorial at Pearl Harbor, you must visit what Hawaiian island?"

Oahu:

The USS Arizona was the site that suffered the most casualties in the Japanese attacks on Pearl Harbor during World War II, with 1,177 lives lost. The USS Arizona Memorial is on Oahu's south coast, about 12 miles west of Waikiki and Honolulu. Today, thousands flock 
to the oblong floating memorial in Oahu, situated directly above the hull of the sunken battleship, to honor and pay tribute to the fallen and remember the events of that fateful day. The memorial, built in 1962, is visited by more than two million people annually.

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