Wallace Collection of the wealthiest families in Europe. They owned large properties in England, Wales and Ireland, and increased their wealth through successful marriages. Politically of lesser importance, the 3rd and 4th Marquess and Sir Richard Wallace became leading art collectors of their time. The Wallace Collection, comprising about 5,500 works of art, was bequeathed to the British nation by Lady Wallace in 1897. The state then decided to buy Hertford House to display the collection and it was opened as a museum in 1900. As a museum the Wallace Collection's main strength is perhaps its extraordinary array of 18th-century French art:
MOMus–Museum of Modern Art–Costakis Collection MOMus–Museum of Modern Art–Costakis Collection The Thessaloniki State Museum of Contemporary Art () is a state museum based in Thessaloniki, Central Macedonia, Greece. It was founded in 1997, at the occasion of Thessaloniki's year as European Capital of Culture. It is housed in the renovated building of the old Lazariston Monastery in the Borough of Stavroupoulis in west Thessaloniki. The museum was established by a law passed in the Greek Parliament by then Greek Minister of Culture, Evangelos Venizelos. Its initial collection was formed by a large part of the famous Costakis Collection, acquired by the Greek state. It contains