What is the fine-grained topic of the following text: Thanks to the network provided by Christie’s International Real Estate, Michaël Zingraf now enjoys a significant international position in some of the most remarkable destinations on our planet (Saint-Barth, the Canaries, Marrakech, Switzerland, Austria, Bali, Thailand, Tuscany, South Africa, etc.). Only return the topic.
Michaël Zingraf's international position through Christie’s International Real Estate network.