These 30-foot-deep tunnels were technological marvels, considering what the men had at their disposal.

Then there is the modern camp which have designed many technological marvels of their own.

She was struggling with some of the technological marvels of the last few years.

The entire planet was a city of technological marvels and striking robotic capabilities.

And I came, expecting to find technological marvels waiting for me.

Three technological marvels, considered almost commonplace, on which so many lives now hinged.

What technological marvels would we have to be grateful for?

There is not a word of explanation about any of the technological marvels in the story.

Look at the aircraft involved in that battle, technological marvels for their time.

The intensive care units for infants are technological marvels in miniature.