Downtown area is home to historic neighborhoods and buildings such as the Sir Walter Raleigh Hotel built in the early 20th century, the restored City Market, the Fayetteville Street downtown business district, which includes the PNC Plaza and Wells Fargo Capitol Center buildings, as well as the North Carolina Museum of History, North Carolina Museum of Natural Sciences, North Carolina State Capitol, Peace College, the Raleigh City Museum, Raleigh Convention Center, Shaw University, and St. Augustine's College. The neighborhoods in Old Raleigh include Cameron Park, Boylan Heights, Country Club Hills, Coley Forest, Five Points, Budleigh, Glenwood-Brooklyn, Hayes Barton Historic District, Moore Square, Mordecai, Rosengarten Park, Belvidere Park, Woodcrest, and Historic Oakwood. In the 2000s, an effort by the Downtown Raleigh Alliance was made to separate this area of the city into five smaller districts: Fayetteville Street, Moore Square, Glenwood South, Warehouse (Raleigh), and Capital District (Raleigh). Some of the names have become common place among locals such as the Warehouse, Fayetteville Street, and Glenwood South Districts.

Answer this question, if possible (if impossible, reply "unanswerable"): What century did they take down the Sir Walter Raleigh Hotel?
unanswerable