"The one that was as big as a twenty-story building?"

It looked like a twenty-story building without windows, extending to either side, slightly concave.

A new, twenty-story building has been planned instead.

Most of the dead were guests on 3rd, 4th, 5th and 6th floors of the twenty-story building.

The six building complex includes two twenty-story high-rise buildings built in 1975.

Although not constructed yet, the station is built with a foundation for a twenty-story building.

In the center of town, where the ellipsoidal dome was a quarter of a mile high, there were even twenty-story buildings.

She was 200-odd feet in diameter - as thick as a twenty-story building is tall.

And over twenty-story buildings at approximately a hundred miles an hour.

Through gutted walls I saw that a twenty-story building had been converted into one giant thrill ride .