Trujillo's "central arch" was his instinct for power. This was coupled with an intense desire for money, which he recognized as a source of and support for power. Up at four in the morning, he exercised, studied the newspaper, read many reports, and completed papers before breakfast. At the office by nine, he continued his work, and took lunch by noon. After a walk, he continued to work until 7:30 pm. After dinner, he attended functions, held discussions, or was driven around incognito in the city "observing and remembering." Until Santo Domingo's National Palace was built in 1947, he worked out of the Casas Reales, the colonial-era Viceregal center of administration. Today the building is a museum; on display are his desk and chair, along with a massive collection of arms and armor that he bought. He was methodical, punctual, secretive, and guarded; he had no true friends, only associates and acquaintances. For his associates, his actions towards them were unpredictable.