8Azzam – Around $600 Million

Azzam is a genuine record-breaker. Measuring 180.6 meters, it remains the world’s longest private yacht.

Lürssen built the yacht for the late UAE president Sheikh Khalifa bin Zayed Al Nahyan, with reported construction costs of approximately $600 million. Despite its enormous size, Azzam was designed to be exceptionally fast for a vessel of its dimensions.

Its sleek exterior was created by Nauta Design, while the interior was designed by French designer Christophe Leoni.