In the city, we're big fans of historic real estate.  So, imagine my delight when historic Firehouse 44 hit the market.  The firehouse was built in 1910 and has an impressive history.  It was built to house a team of horses and 12 firemen who fought fires on Castro Hill.  In 1959, artists Mark Adams and Beth Van Hoesen purchased the firehouse at a public auction for $7,500.  The couple had a knack for throwing fabulous parties, and their beautiful and bohemian conversion of the space was photographed and published in design magazines, mostly because living and working in unusual spaces was not common at the time.  Shoot forward to present day and Teutonic Construction and interior designer Josephine Fisher have done a heavy renovation of the firehouse, and turned it into a modern masterpiece that pays homage to the original architecture and historic elements.  Highlights include:  4 bedrooms, 4 baths, 2 half baths, spa, elevator, wine cellar, 360 degree viewing tower, roof terrace and 2 fireplaces.  The real show stopper, though, is the 4-story glass and reclaimed lumber staircase atrium which extends to the skylight above.  Available for $5,975,000.