During the 19th century, engineers designed polygonal forts to withstand artillery bombardment.

Children spent the afternoon building snow forts in the park and then staged an epic battle.

The hikers paused to rest near the ancient hill-fort, whose earthen ramparts still marked the skyline.

After the first big snowfall, the neighborhood kids worked together to build an elaborate snow fort complete with arched entrances and lookout towers.

I traveled to Fort Worth last summer to visit the art museums and enjoy the cowboy culture.

Fort Yukon sits on the north bank of the Yukon River and serves as a cultural center for the surrounding villages.

Could you hold the fort while I'm at the conference tomorrow?

Navan Fort stands on a hill overlooking the River Fane, offering visitors a glimpse into ancient Ulster's ceremonial past.

The conductor marked a mezzo forte passage in the second movement to bring out the melody.

The pianist played the passage mezzo forte to convey restrained passion.