Santa Fe, New Mexico. Built in 1970, this three-bedroom home has a two-story library that can hold 10,000 books. The adobe house features a wine cellar, seven fireplaces, Mexican tile, and a master suite with a kiva fireplace, two bathrooms, and a study.

The 20.8 acres include vegetable gardens, a greenhouse, a guesthouse, and an artist's studio. $4,200,000. Ashley Margetson, Sotheby's International Realty, (505) 984-5186.

Sewickley, Pennsylvania. Built in 1900, this six-bedroom stone house is in the village downtown. The large library has a red marble fireplace, glass bookcase doors, crown molding, and a bay window with a cushioned seat.

Details of the fully renovated home include a grand staircase, stained-glass windows, and a master bedroom with a spa bath. $1,950,000. Kathe Barge, Howard Hanna, (412) 779-6060.

Long Grove, Illinois. This five-bedroom home has a 1,128-square-foot library accommodating 10,000 books in its two-story wraparound balcony shelves. Additional details include oak hardwood, skylights, a wet bar, a screened porch, and an updated kitchen.

Zoned for horses, the 3.2-acre property has a three-stall barn and 60 varieties of trees. $789,000. Ron Gerberi, Coldwell Banker Residential Brokerage, (847) 668-8110.

Langley, Washington. This five-bedroom house on Whidbey Island is owned by bestselling mystery writer Elizabeth George. The shingle-style home has a gym, a library with a fireplace, and a master suite that includes a spa bathroom, a sitting area, and a fireplace.

The 9.7-acre property has mature landscaping, a barbecue pavilion, a cottage, and a three-car garage with an apartment above. $5,200,000. Scott Wasner, Realogics/Sotheby's International Real Estate, (206) 910-1410.

Far Hills, New Jersey. This six-bedroom home sits on 9.6 acres along a dead-end road. The house features a two-story, wood-paneled library with a spiral staircase and holds up to 6,000 books.

Other details include French doors, a great room with a stone fireplace, a chef's kitchen with a stone arch, and a large pool with a patio. $3,900,000. Molly Tonero, Turpin Realtors/Christie's International Real Estate, (877) 788-7746.

Cambridge, New York. This three-bedroom colonial was built around 1820. The living room features a wood-burning stove, a wall of built-in bookshelves, ornate ceilings, and an attic studio.

The 0.77-acre property borders a stream and has a two-story carriage barn and a historic building that could serve as a writer's cottage. $339,900. Deborah Andersson, Select/Sotheby's International Realty, (518) 496-0237.

**Want more? Check out "6 fantastic homes under $300,000"**