This solar-powered Star Trek mailbox, dubbed the NCC-USPS, was made by redditor ModXMV and apparently lights up at night. The perfect way to guide the enterprise back in time to earth to save the whales!
That looks more like the original Enterprise that was destroyed in the third movie. In the fourth movie where they save the whales, the used a Klingon vessel. Sorry to be a pedant.
Being a Star Trek fan is being a pedant: Those nacelles are on backwards!!1! :p