As you move from the tiny passageways to cathedral-like main halls, it's hard not to be impressed.

In Siena, the locals drive miniature three-wheeled vans, pickup trucks, and even dump trucks designed to navigate the city's tiny medieval passageways.

Have them standing in line in your tiny passageways?

He aimed the beam up the tiny passageway and crawled in.

Muscles in the tiny passageways of the lung tighten and constrict airways when exposed to irritants like pollen or pollutants.

Dee clawed out a final hold and heaved herself up into the tiny passageway, gasping from pain and exertion.

He perceived a tiny passageway in one wall and ran to it.

This machine fills the lungs with fluid that flows into the tiny passageways and air sacs of a premature human lung.

"We could not catch them in these tiny passageways," one of them complained.

As a mouse, he moves at top speed, enters tiny passageways, talks to other mice, and can more easily avoid attacks due to his small size.