Full Exposure/Part 4

Glass island

For $13.73 million, a glass and steel home in Son Vida on Mallorca, the Mediterranean island off the coast of Spain, offers much to admire, thanks to its windowlike walls.

Palma-ramic views

Secured in a gated community overlooking the city of Palma, the Bay of Palma and surrounding mountains, this home offers security and unrivaled natural beauty.

Martha's old crash pad

Private homes aren't the only way to get full exposure. Renowned architect Richard Meier designed a number of glass-walled apartment buildings that have attracted celebrity interest. A penthouse duplex in his iconic Perry Street Towers in New York is for sale for $13.9 million. It also happens to be Martha Stewart's old crash pad.

From the terrace

This really is life in a fishbowl: The apartment has four terraces and spectacular views of the Hudson River and Manhattan through the 11-foot, triple-glazed and UV-protected glass walls.
The views go both ways. But while neighbors and traffic on the West Side Highway might be able to gaze inside, physical access is restricted by a keyed elevator.