Located on the edge of Louis XIV's Royal Domain, just minutes from downtown Paris, the Trianon Palace and Spa, A Westin Hotel has hosted the world's political, business and arts leaders since 1910. The Trianon Palaceand Spa, A Westin Hotel features 2 buildings facing each other: the main historical building, the Palace with 93 apartments and deluxe suites, and the Pavillon with 99 standard bedrooms.