Castillo Douglas, Stone castle house in Aguascalientes, Mexico

Castillo Douglas is a two-storey stone mansion with a basement, built from stone brought from San Luis Potosí. It has a moat, drawbridge, outer wall, battlements, turrets and a private chapel, giving it the look of a French feudal fortress. A stained-glass window made in Vienna is among its features.

Edmundo Ortega Douglas commissioned the house in 1923 from architect Federico E. Mariscal, with construction by Refugio Reyes Rivas; it was finished three years later. He built it as a tribute to his maternal grandfather, John Douglas, a Bury-born Englishman who founded the La Perla flour mill and the city's tram system. The couple lived there until Carmen died in 1967 and Edmundo in 1969; after 1970 it stood empty, was restored in 1997 as a bar-restaurant that later closed, and was sold in 2015.

The inscription 'Amore ne vanitate' above the entrance speaks to values of love over vanity that mattered to the family. Carved initials of Edmundo and Carmen on the doors reinforce this personal connection to the building.

The house is currently unoccupied and can be viewed from the exterior, with its stone facade and towers visible from the street. Visitors should note that the interior is not accessible and the property remains privately owned.

The 1997 restoration did open a bar-restaurant inside the castle, but it is no longer operating. After Edmundo's death in February 1969, one of his sons ran a mechanical workshop on the premises, and the building stood empty after 1970 until the 2015 sale.