1. The Kenya National Archives, located in Nairobi, is the official repository of government records and cultural heritage artifacts in Kenya. It was established in 1965 and is one of the largest archives in Africa.

Interesting facts about the Kenya National Archives include:

- The building itself is an architecturally significant landmark, designed in the neo-classical style with a central dome and a colonnaded entrance.

- The archives hold a vast collection of historical documents, photographs, maps, books, and newspapers, dating back to the colonial era and pre-independence period.

- The archives also house a large collection of audiovisual materials, including films, videos, and sound recordings, documenting Kenya’s cultural heritage.

- The National Archives also has a library with extensive resources on Kenyan history, politics, culture, and literature.

2. The working time of the Kenya National Archives is Monday to Friday, from 8:30 am to 5:00 pm. Unfortunately, I couldn’t find a specific phone number for the National Archives, but you can contact the National Museums of Kenya (NMK) for further information at +254 20 8164130 or visit their website at www.museums.or.ke.

3. Admission to the Kenya National Archives is usually free, but there may be charges for specific services such as research, reproduction, or access to specialized collections. To access the archives, you would most likely need to visit the building in person.

In terms of transportation, the National Archives is located in the city center of Nairobi, making it easily accessible by public transportation, taxi, or private vehicle. It is located near major landmarks such as the Nairobi City Hall, Parliament Buildings, and the Nairobi Hilton Hotel.