Top 12 Places You're Not Allowed To Visit

The first thing a visitor sees when approaching Area 51, the U.S. Government’s top secret military base for developing and testing experimental aircraft and weapons, is a sign that reads: “Restricted area. No trespassing beyond this point. Photography is prohibited.” Oh, and in smaller print it also says that “deadly force can be used”. That's not something you want to experience on your vacation. The base is famed for supposed UFO occurrences and conspiracy theories, which is strange, considering it’s supposedly a top-secret facility, so much so that the government even denies its existence. Luckily, tourists who attempt to visit the base and are greeted by whizzing bullets can always turn back and head to Las Vegas. Only 83 miles away.

Metro-2 in Moscow, Russia, is a secret, or not so secret, metro system that parallels the public Moscow Metro, but is a lot larger, exceeding that of the normal metro system, and lying deep underground at 50 to 200 meters deep with only 4 lines. Built during the halcyon Stalin days, it was codenamed D-6 by the KGB. There has been much speculation as to the existence of Metro-2, but reports from Russian journalists, high government officials, and metro authorities have essentially lain all doubt to rest. The secret metro lines connect key government buildings such as the Kremlin with the FSB headquarters, the government airport at Vnukovo-2, an underground town at Ramenki, and other locations of national importance, and house ample living space for politicians and their families. Sounds like something we've read in sci-fi books to us!