Here the focus is on the huge machinery and engineering feats that keep the oil production up.

Perhaps we've reached a point where keeping the options simple is just too great an engineering feat.

It was a great engineering feat at that time.

"To do that with such a large captive audience in one location is quite an engineering feat."

It was an engineering feat beyond anything he had ever imagined.

It is considered an engineering feat and was the first bridge of this type in the world.

Building a 400,000-pound plane with a tail span of 113.5 feet was one engineering feat; moving it will be another.

The move was an engineering feat of its time.

The ladder was an impressive engineering feat, but time had taken its toll.

Opened in 1894, this remarkable engineering feat was closed for maintenance during October 2007.