ha,ha,ha,ha,ha....my wife and I saw Carhenge (western Nebraska near Scottsbluff) a few years ago. I highly recommend it. The guy who made it tried to replicate the dimensions of Stonehenge...which my wife and I saw for real last September. A truly uncanny resemblance.
Of course, the government knows all about these things and keeps them all supressed in Area 51. When inventors discover these devices on their own, they are imprisoned/ threatened and have their labs and every trace of inventions stolen, which they can never seem to duplicate again unless you send them lots of money.
Of course, if any of these people would just watch tv, they'd see that it is no secret what those things were. They are just remnants of star gates, or time travel devices. :o) /s
A Valiant....
An old Willys truck
And of course... The Gremlin...
With the '67 Galaxy peeking around to pass that old MoPar on the outside...
What a country...