Norway has hatched ambitious plans to install the world’s first floating underwater tunnels to help travelers easily cross the nation’s many fjords. At present, the only way to travel across the bodies of water involves taking a series of ferries – an inconvenient and time-consuming process. The “submerged floating bridges” would consist of large tubes suspended under 100 feet of water, and each one will be wide enough for two lanes of traffic...How can they spend $25,000,000,000 on this? Because they're not spending $25,000,000,000 projecting their military strength around the world. They understand the importance of maintaining and improving infrastructure, and their nation's political structure is not controlled by the military-industrial complex.
Norway has so far committed $25 billion in funds to the project, which is expected to reach completion by 2035.
Addendum: a relevant video.