Saudi Arabia

Following a delay of several years, Saudi Arabia has reportedly restarted work on its incredibly ambitious Jeddah Tower. The megatall skyscraper will be the new world's tallest manmade structure once complete and will reach over 1 km in height.

It’s hard to construct a building without a plan, but when did humans first start doing that? Archeologists have discovered the oldest known blueprints, with a 9,000-year-old rock carving in Jordan depicting a to-scale plan for a nearby megastructure.

To commemorate the origins of Saudi Arabia, its Ministry of Sport commissioned a state dinner to be held in a massive tent-like dome structure for just one night. It weighed over 300 tons and took a team of builders 13 days to build.

Saudi Arabia is currently undergoing a huge development push to help turn the country into a tourism hotspot. As part of this effort, Heatherwick Studio is transforming a former desalination plant on the Jeddah waterfront into a one-of-a-kind museum.

Imagine taking a population the size of New York and putting it into a 170-km-long skyscraper in the desert. An incredibly ambitious project named the Line is doing just that, and UK firm Atkins has been commissioned to help realize it.

An incredibly ambitious new cuboid skyscraper is planned for Riyadh that will reach a height of 400 m and host a twisting tower inside. According to Saudi Arabian authorities, its interior will be so big that it could hold 20 Empire State Buildings.

As part of an effort to turn Saudi Arabia into a world-leading tourist destination, work is underway on a striking marine center on the Red Sea coast that will be shaped like coral and feature interactive exhibits, including an artificial coral reef.

Saudi Arabia has revealed plans for an architecture project so ambitious that it almost beggars belief. The Line project is envisioned as a 170-km-long skyscraper home to approximately 9 million people – or around the same as the population of NYC.

London company Stufish laid out a spectacularly trippy experience for visitors to this year's One Giant Leap technology conference in Saudi Arabia, in which visitors could walk through a colossal kaleidoscope tunnel, surrounded by wild LED visuals.

Work has begun on an ambitious hotel that will be part-built into a mountain. The rock that's excavated during the build process will be reused to create the luxury hotel suites, which will offer choice views of the stunning Arabian landscape.

Foster + Partners has designed a colorful island paradise for Saudi Arabia. Named Coral Bloom, it will offer beachside luxury and be powered by a mixture of wind and solar power, backed up by an absolutely gigantic battery.

Influential French architect Jean Nouvel has produced several impressive buildings in the Middle East, but his latest project may be his most ambitious. Sharaan consists of a resort and hotel built into sandstone mountains in the Arabian desert.