For architecture buffs numbed by the ongoing global battle to crank out record-breaking tall buildings, here's something innovative to spark the imagination.
The South Korean government has granted approval to begin construction on the world's first "invisible" tower.
Designed by U.S.-based GDS Architects, the glass-encased Tower Infinity will top out at 450 meters (1,476 feet) and have the third highest observation deck in the world.
The project is backed by Korea Land & Housing Corporation, a state-owned land and public housing developer.
The invisibility illusion will be achieved with a high-tech LED facade system that uses a series of cameras that will send real-time images onto the building's reflective surface.
It will be built just outside of Seoul near the Incheon International Airport.
Neither the developer nor GDS have released a target completion date.
The development will reportedly be used primarily for leisure activities. It will include a series of observation decks, a movie theater, roller coaster, water park and numerous food and beverage outlets.
Though height isn't its main selling point, Tower Infinity is no slouch in the vertical department.
When completed, it's expected to come in sixth on the list of the world's highest towers, behind Tokyo SkyTree, Guangzhou's CantonTower, Toronto's CN Tower, Moscow's Ostankino Tower and Shanghai's Oriental Pearl.
Editor's note: The original version of this paragraph said Tower Infinity would be one of the world's tallest buildings, not towers. The error has been corrected.