[4] The National Geographic Society has named the landmark "the most beautiful building in San Antonio.

[4] The keystone above the front entrance is marked with the coat-of-arms of Spanish King Ferdinand VI and the date 1749.

[5] The building was the residence and working offices of the local presidio captain at first.

The one-story masonry and stucco structure features ten rooms, a grand courtyard and a fountain, and is alleged to be haunted.

[5] The palace is located in between Market Square and the San Antonio River Walk near the current city hall.