Architects: McKim, Mead, & White.

Morgan Library in History: When it was built, the Pierpont Morgan Library cost approximately $1.2 million -- roughly the cost of a nice two-bedroom apartment in some parts of the city today.

Morgan Library Today: In 1987, the library doubled in size when it acquired the nearby Jack Morgan townhouse. A garden courtyard was designed to connect the two buildings (a glassed-in cafe, located in the courtyard, makes a great place for lunch). In a move that proves the Library to be one of the more honorable institutions in the U.S., the Morgan recently returned two sixteenth-century manuscripts to their rightful home in Nuremberg, Germany, after it was determined the works were stolen during World War II.

Address: 29 East 36th Street
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