Sited on just shy of three acres, the L-shaped home overlooks the beach on one side and the Intracoastal Waterway on the other for unprecedented water views. This house looks out onto Kukios South Pond, and then onto the ocean. The world's costliest house is not the tallest building nor the most explored but a rare gem only the architects and owners know the secret behind their unique and costly designs. Michael G. McCafferys $3-million house sits alone out on a point in Makena, surrounded on three sides by ocean. Rare amenities include a tennis court plus a landing pad for a helicopter, so owners can pop in and pop out as they please. (Although when we flew over the property, the pond was all but empty. Outdoor entertaining options abound from the infinity pool to the cabanas; theres even a sauna with spectacular views. Now state leaders are ready to start opening back up to visitors. More of a compound than a home, there are six buildings that combine about 30,000 square feet of living space. There's also a pool with a pool house as well as a koi pond and an equestrian compound that has riding rings, stables, as well as a barn. The four-bedroom home, built in 2004, has been featured in both Forbes and Architectural Digest magazines. The popular The One Bel-Air mega-mansion was recently bought by Richard Saghian, owner of the fast-fashion business, Fashion nova, for $141 million. Charles Kip Thieriot, now retired, is a member of the prestigious family that founded and ran the San Francisco Chronicle, and was himself the president of Western Communications. Who needs to swim in the ocean when youve got a pool this gargantuan? 3509 Euclid Avenue | $15.25 Million. The six-bedroom main house was built in 2001. We all know that George Lucas has made a fortune for being the creator ofStar Wars. Constructed between 1926 and 1929, the Tudor revival-style residence has 110 rooms, sits on 1,500 acres and cost nearly $4 million at the time it was built. Ifwhats there isnt quite enough, theres room on the property to keep on building. Before that, Joe Schenck, the chairman of 20th Century Fox, lived here. Fittingly located on the south end of Billionaires Row, the custom two-story manse was completed in 2014 for seller Dr. Ernst A. Langner and his wife Nataly. The fashion icon also offloaded a Southampton Village oceanfront estate for $84.4 million in March 2020.