Five years ago, the city successfully challenged an attempt by the Yankees to play its first three homes games in Denver.

And a city that is cleaner, and more manicured, I challenge you to find!

Here was another "lost" city to challenge the sleuthing instincts of archaeologists.

They described the lawsuits as the first in which the city challenged the use of foreign government real estate for business or housing purposes.

The city then challenged the act's constitutionality, ultimately sending the issue to the high court.

"The city challenges you; it prepares you for life."

The city now may challenge the findings of the compliance investigation before a state administrative law judge.

The review was due after the 1990 census but was delayed when the city challenged the results.

The city is challenging the ruling in court.

But the city intervened and challenged the issue in court as usurping the Mayor's power.