What information can you provide me on their sister cities 
 Denver's sister city is Brest, France, and they have been related since 1948, making it the second-oldest pairing in the United States. 
 Tell me more about its public transit. 
 I do not know more about the pairing, but Brest is a town in France in the Brittany region. It is the largest town in the Finistere department. 
 Thank you for your help
Denver's sister city is Brest, France, and they have been related since 1948, making it the second-oldest pairing in the United States.