USA Historic Places has over 25,000 United State (USA) historical Wikipedia places in its database. You can browse historical places around your current location or around a chosen location.
Because all historical place data is resident in the app cellular data usage is kept to a minimum.
USA Historical Places may be used offline.
Offline Capabilities: Wikipedia article text, list of nearby historical places and offline maps.
Not Available Offline: Driving and walking directions, street view, nearby businesses and the ability to choose a location other than your current location.