1999 - Queen Beatrix and King Simeon from Bulgaria opened SEA - an exhibition of five Bulgarian artists - Venelin Ivanov, Pravdoliub Ivanov, Kossio Minchev, Georgi Tchapkanov, KIril Prashkov in OPAM - sculpture Park in Zwijndrecht Holland

In the summer of 1999 Queen Beatrix joined her friend King Simeon who was asked by Lucien den Arend to open the exhibition Black Sea | North Sea.

Queen Beatrix
Henry Moore Italy 1
Henry Moore Italy 2
Henry Moore Italy 3
Henry Moore England
Jorma Hautala - Kari Huhtamo - Matti Peltokangas
Christo and Jeanne Claude
Truus Schröder-Schräder
Donald Judd
Gerard Fieret