what building is on the back of the nickel

[McSteven]

Based on the provided context, the specific building on the back of the nickel is not identified. The U.S. Mint source offers general information about the nickel but does not describe its reverse side in detail, and the Wikipedia source link for Monticello contains no text.

Drawing upon general knowledge, the building featured on the reverse of the U.S. nickel is Monticello. This historic structure was the primary plantation and home of Thomas Jefferson, the third President of the United States. The choice of Monticello for the coin's design is significant as it directly relates to the portrait of Jefferson that appears on the obverse, or front side, of the coin. This design has been a feature of the nickel for most of its production since 1938.