Apartment listings in Richard Meier's 165 Charles Street are often notable if only for the degree to which they embody the idea of the modern glass-box penthouse. This unit, on the building's 14th floor, is not touting itself as a penthouse, but it might as well be because just look at it. 11 floor-to-ceiling windows make up the two-bedroom's Hudson River-facing side, which always seems like it would get a little annoying what with the sun and everything. But apparently someone figured it was worth $7.35 million in 2011, and is hoping that someone else will think it's worth $10.5 million in 2015. The building's actual penthouse, with double-height ceilings, also remains on the market, asking $40 million.