You heard of the two guys who recently opted in to a two-year, $1.5 million holiday? These are some of the sights they'll be privy to.
Luxury website VeryFirstTo.com unveiled its $1.5 million trip just a month ago, a luxury expedition to all 962 UNESCO World Heritage Sites in what has been billed as the world's most expensive vacation.
Two men have reportedly signed up -- a Chinese student and an Italian businessman.
Their "vacation" will take them from dazzling underwater ecosystems to the ruins of ancient civilizations, otherworldly natural landscapes to more modern works of architecture.
Each year, around 25 sites deemed to have "outstanding universal value" are inscribed on the list, and while critics may cry foul for choosing favorites, we couldn't resist.
We've rounded up 20 sites that we would be looking forward to most if we were going on the trip.
Read about the sites below and find out how to get there yourself below.
The site lies a 20-minute tuk-tuk ride from the city of Siem Reap, with the bulk of visitors traveling between November and February, when the weather is dry and temperatures are coolest (25-30°C). You can explore Cambodia on a Geckos Adventures tour.
It's possible to take a tour to the site, or simply wander up there from the city of Athens on foot. The route along Adrianou Street to the back entrance of the site is a gentler climb than the Dionysus Theatre entrance. For more info, visit the Greece Tourism website.
Located in Burma's central west, Bagan is serviced by flights, buses and trains from Yangoon. Accommodation is centered in the surrounding villages of New Bagan and Nyaung Oo. Tours available with Intrepid.
Galápagos Islands, Ecuador
Located nearly 1,000 kilometers from mainland Ecuador, the islands are serviced by flights from Quito and Guayaquil. Multi-day boat cruises are generally the best way to explore the islands. Celebrity Cruises will get you around the Galápagos in style.
Göreme National Park and the Rock Sites of Cappadocia, Turkey
Due to the remote nature of the site in central Anatolia, most visitors opt to fly in from Istanbul to visit the area on a tour, or self-drive. Rock-cut hotels provide accommodation. Fore more info, visit the Turkey Tourism website.
Great Barrier Reef, Australia
Larger islands are well-serviced by flights from mainland Australia. It's also possible to visit the reef via day trips from northern Queensland ports including Cairns and Port Douglas. For more info, visit the Tropical North Queensland Tourism website.
Hampi is serviced by overnight bus from Goa. Trains also run to nearby Hospet from Chennai, Mumbai, Bangalore, Delhi and Calcutta, and visitors will find a good range of low to mid-range lodgings around Hampi village. Tours available through On The Go Tours.
Iguassu Falls, Brazil and Argentina
The less-developed but refreshingly uncrowded Brazilian side of the falls is a half-hour bus ride from the city of Foz do Iguaçu. It's the same distance to the falls from Puerto Iguazu on the Argentine side. The two countries are connected via a bridge downriver of the falls. For more info, visit the Argentina Tourism website.
Los Glaciares National Park, Argentina
Most visitors to this remote southern region of Argentina base themselves in El Calafate, the closest town to the park entrance. There are daily flights and buses from the capital Buenos Aires. For excursion options, check out Gigantes Patagones.