While $12,000/month may seem like an insane price for an apartment in Brooklyn, this Williamsburg loft doesn't even make the list of the most expensive rentals in the borough. It's located on the top floor of a converted factory building at 500 Driggs Avenue near North 9th Street, and it features some factory-ish details like exposed brick and barrel-vaulted ceilings. The kitchen is kind of small and odd (is that paper behind the oven vent?), and the living space has a weird little glass fireplace box, but the 1,700-square-foot private rooftop terrace is pretty great. One of the four bedrooms is also only accessible from the terrace, making for a unique private suite.