Then I looked down again and realized that between the first floor and the seventh floor there was nothing but empty space.

NEWYORKER: Meeting with Enrique Lihn

First-class existing buildings are priced to yield only around 5% to an all-cash buyer, says research firm Green Street Advisors. (The return they talk about is rent minus the costs of operating and maintaining the building and leasing any empty space.) But a skillfully developed new property can bag an annual cash return of up to 10% of its construction costs.

FORBES: On The Cover/Top Stories

But that is because they are mostly empty space.

ECONOMIST: An old idea may help solve the problem of plastic waste

This may sound like a complicated way to make a telescope move, but the problem is, there is nothing in empty space to push on.

CNN: Kepler or not, we'll find life in space

It's a photo taken in 1972 of a Philip Morris office space, all white and empty but for rank-and-file black telephones on the floor hooked up to outlet poles as if on IV support.

WSJ: The Confidence of an America in Full Stride | Ezra Stoller: Beyond Architecture | Yossi Milo Gallery | By Julie V. Iovine