This is either the world's biggest radio-control B-52, or the world's smallest B-52. It has a wingspan of 22 feet. The eight turbine engines alone cost $12,000, according to the Internet.
The B-52 has company. Lots of it. Here are more model planes that are bigger than planes…
Below, an incredibly/painstakingly-detailed SR-71 cost more than $100,000 to make, a process chronicled in detail here.
Here's a video of the Globemaster in flight.
Here's one of the B-52…not a happy ending, as the YouTube title suggests.
For more homongous plane models, click here.