Many historical sites exist throughout the city, including 59 properties listed on the National Register of Historic Places. Of these, nine are among the 60 U.S. National Historic Landmarks in Connecticut. The New Haven Green, one of the National Historic Landmarks, was formed in 1638, and is home to three 19th-century churches. Below one of the churches (referred to as the Center Church on-the-Green) lies a 17th-century crypt, which is open to visitors. Some of the more famous burials include the first wife of Benedict Arnold and the aunt and grandmother of President Rutherford B. Hayes; Hayes visited the crypt while President in 1880. The Old Campus of Yale University is located next to the Green, and includes Connecticut Hall, Yale's oldest building and a National Historic Landmark. The Hillhouse Avenue area, which is listed on the National Register of Historic Places and is also a part of Yale's campus, has been called a walkable museum, due to its 19th-century mansions and street scape; Charles Dickens is said to have called Hillhouse Avenue "the most beautiful street in America" when visiting the city in 1868. COUNT 9
QSN1 How many properties in New Haven are featured on the National Register of Historic Places?  ANS1 59 QSN2 In 1868, which famous author is reported to have declared New Haven's Hillhouse Avenue to be "the most beautiful street in America?" ANS2 Charles Dickens QSN3 Of the three churches flanking New Haven Green, which is home to a notorious 17th century crypt? ANS3 Center Church on-the-Green QSN4 What famous American traitor has a first wife buried in a 17th century crypt in a New Haven church flanking New Haven Green? ANS4 Benedict Arnold QSN5 What structure of Yale University, listed on the National Register of Historic Places, holds the distinction of being the oldest building on campus? ANS5 Connecticut Hall QSN6 According to the National Register of Historic Places how many historical sites are there in New Haven?  ANS6 59 QSN7 In what year was the famous The New Haven Green founded? ANS7 1638 QSN8 What tourist spot can be found directly underneath the New Haven Green? ANS8 a 17th-century crypt QSN9 Yale University also contains a historical site within it campus, the name of it? ANS9 Hillhouse Avenue