San Antonio is a proper noun. San Antonio is (1) a city of south central Texas; site of the Alamo; site of several military bases and a popular haven for vacationers.
The Quisto editorial staff has evaluated these websites and placed them in the San Antonio information category.
Frommer's Destinations - San Antonio
This San Antonio travel guide features trip planning, accommodations, dining, and attractions information.
Lonely Planet - San Antonio
This San Antonio, Texas destination guide features information about events, attractions, history, and transportation.