"This wall forms the dividing line between past and present," he said quietly.

In an instant, a visible wall of heat formed around both the aliens.

Under the right conditions, thin flexible walls form rapidly at the interface.

Its walls formed a perfect circle nearly a mile in diameter.

This wall is still standing and now forms part of Westminster School.

Seven walls (called Yelusuttinakote in local language) form the fort.

A retaining wall formed the rear of the burial site.

These walls will form with probability 1 for completely random initial conditions.

A beautiful curved wall that rises for nearly 20 feet forms the base of the church.

The thick wall formed provides resistance to adverse environmental conditions.