Torre Loizaga is a renovated tower house and automobile museum, located in Concejuelo de Galdames, Biscay in the Basque Country, Spain.

Described as one of the most significant Rolls-Royce collections in the world, it contains 45 Rolls-Royce cars in three pavilions, in a total of 75 cars on display. Its most significant cars are an 1899 Allen Runabout, and a rare 1956 Rolls-Royce Phantom IV, originally owned by HH Abdullah III Al-Salim Al-Sabah, Hakim of Kuwait.

The museum is open from 10:00 AM to 3:00 PM during the summer, and costs €7 for adults, and €3 for children between 12 and 18 years of age.

Located 45mins drive from Bilbao, most reviews suggest that an authorised tour bus is both the easiest way to get there, and to find the hard to locate castle.

If travelling by car, exit the Autovía A-8 at Abanto y Ciérvana-Abanto Zierbena, and head south on the N-634 towards Las Carreras and Somorrostro Muskiz. On reaching Somorrostro Muskiz, take the BI-2701 south towards Sopuerta. Then take the BI-3631 East towards Galdames Güeñes (second road marked to Galdames Guenes), to kilometre marker 33, and then take mud track south marked towards Torre Loizaga.

• Castle website
• Video of Museo-Coleccion Rolls Royce Torrre Loizaga at YouTube

43°15′06″N 3°07′45″W / 43.2516°N 3.1292°W / 43.2516; -3.1292