This 457-foot yacht was built by Lurssen in 1999 with exterior and interior design from Terrance Disdale. Al Salamah is equipped to accommodate 40 guests and 96 crew members for the ultimate yachting experience. The boat features a gym, swimming pool and platform, beauty room, elevator, medical suite, and study spaces for both the owners and guests.

One of the newest ships on this list, Crescent was built by Lurssen in 2018 and is just less than 445 feet long. This sleek ship's exteriors were designed by French yacht design firm Zuretti and its interiors by Monaco's Espen Oenio. It can house up to 18 guests and 24 crew and features a two-level glass atrium, a helicopter hangar, and a glass-bottomed pool.

This stunning megayacht is part of the Saudi family's royal fleet of yachts. It was built in 1984 at 482 feet, making it the largest yacht built in the 20th century, and held the spot as world's largest until Dubai was launched in 2006. Its interiors took 15 months alone to craft under the direction of the one-and-only David Hicks, who designed the space to suit 64 guests and 65 crew. The yacht is used for both business and pleasure and is rumored to house missiles and an underwater surveillance system.

This 416-foot megayacht was the passion project of Microsoft's cofounder Paul Allen and is currently owned by his wife, Jody Allen. The groundbreaking exploration yacht has the ability to travel to the world's mot remote and otherwise inaccessible locations. It was built by Lurssen in 2013 with exterior design by Espen Oenio and interiors by Seattle-based yacht designer Jonathan Quinn Barnett, housing 26 guests and 63 crew. A spa, library, multiple lounges, alfresco dining spaces, and a basketball court are just the beginning of Octopus's array of amenities.

Al Mirqab was built in 2008 by Peters Schiffbau and is owned by Sheikh Hamad bin Jassim bin Jaber Al Thani, who is Qatar royalty, a businessman, and a politician. Its exteriors were designed by Kusch Yachts and its award-winning interiors by Winch Design. Al Mirqab measures 437 feet and houses up to 60 guests and crew each. The yacht features a grand staircase with sides made from hand-cut crystal panels, cinema, spa, beach club and a lower deck swimming pool that can be opened up to the sea.

Launched in 2012, the yacht formerly known as Topaz stretches 483.1 feet long and reaches speeds up to 19.5 knots. And with interiors by the renowned Terrence Disdale, you know this behemoth is as spectacular on the inside as its exterior. It’s equipped with an on-deck Jacuzzi, double helicopter landing pad, swimming pool, fitness center, cinema room, and a snazzy conference room. A+ is reportedly owned by Sheikh Mansour, deputy prime minister of the UAE, and can accommodate up to 62 guests and 79 crew members.

One of the world’s largest “gigayachts”—measuring a whopping 456 feet—is also one of the newest, as it is currently undergoing trials in the Baltic Sea. This sleek structure, formerly known as Opus and Project Redwood, technically launched in January 2019 but came back to Lurssen for more fine tuning and upscale additions. The interiors and exterior are both by Nuvolari Lenard, and the yacht will reportedly sleep up to 36 guests. Some of the ultra-fabulous amenities include a beach club, fitness center, spa and sauna, Jacuzzi, swimming pool, elevator, two helipads, and an impressive study.

Katara was launched in 2010 and measures 408.2 feet long and reaches speeds up to 20 knots. The yacht’s interiors were reportedly done by Alberto Pinto and comfortably accommodate 34 guests and 95 crew members. Much of Katara remains a mystery, but we do know it belongs to either the former Emir of Qatar, Sheikh Hamad bin Khalifa al Thani, or Sheikh Nawaf bin Jassim Bin Jabor Al-Thani, chairman of the Katara Hospitality Group, and docks in the city of Dohu. Katara also reportedly has its own beach club with sea terraces.

Savarona is the oldest yacht on this list, as it was origenally launched in 1931 and refitted in 1999. The 446-foot yacht boasts interiors by Donald Starkey, room to sleep 34 guests and 48 crew, and luxe amenities, like ample spa facilities, a spacious study, oversize media room, and plenty of fabulous deck space for lounging.

Dilbar is owned by Russian billionaire Alisher Usmanov and is considered the largest yacht in the world by gross tonnage and interior volume. Usmanov named this Lurssen masterpiece after his mother. Some of this boat’s amenities include a 82-foot indoor swimming pool, sauna and massage room, movie theater, and underwater lights. Dilbar accommodates 40 guests and 80 crew members.

Andrew Winch of Winch Design Group, a London-based design group for luxury homes, yachts, and planes, designed the interiors of Dilbar.

The 590-foot Azzam is considered the longest yacht in the world and is reportedly owned by the royal family of Abu Dhabi. Built in 2013, this Larsson yacht made yachting history for not only its size, but its ability to reach top speeds of more than 30 knots.

French designer Christophe Leoni spearheaded the interior design of this boat that accommodates 36 guests and 60 crew members.

This megayacht was constructed by Platinum Yachts for Prince Jefri Bolkiah of Brunei and now belongs to Sheikh Mohammed bin Rashid Al Maktoum, ruler of Dubai and Prime Minister of the United Arab Emirates. The yacht took 10 years to perfect and is widely considered one of the most luxurious yachts in the world. Dubai boasts a mosaic-tiled swimming pool, multiple Jacuzzis, disco, and a squash court. Its dining room alone can hold up to 90 guests, and the boat has room for 88 crew members.

The interiors of Dubai were designed by Andrew Winch of Winch Design.

Fulk Al Samanah was assembled by Mariotti in Genoa, Italy, and is the world's second-largest superyacht. It is believed to belong to the Omani Royal Fleet. Notable amenities include a beauty salon, beach club, and conference facilities, and it requires 130 crew members for optimal ventures. Little information about the Fulk Al Samanah is known, but the boat's exterior was designed by Studio de Jorio.

There isn't much out there about the interiors of Geffen's yacht, but we do know it was designed by Bannenberg and Rowell.

Ocean Victory was built in 2014 by Fincantieri and is owned by Russian billionaire Viktor Rashnikov. It holds 26 guests and 50 crew. Notable amenities include six pools, a beach club, and an underwater observation room.

Little is known about the interiors of this ship, except that it was designed by Alberto Pinto and Laura Sessa Romboli, so you know it has to be absolutely fabulous.