Istanbul Tour Guide: Discover the City with Limousien Plus Istanbul is a marvelous meeting of history and culture. As Limousien Plus, we offer you the most comfortable and luxurious journey to discover Istanbul. Whether it is a business trip or a private vacation, get ready to discover the riches that Istanbul has to offer. Sultanahmet Square and Hagia Sophia Located in the heart of Istanbul, Sultanahmet Square is an enormous area surrounde