Billed as the world's first zero-star hotel, the Null Stern Hotel takes the underground space of a indescribable apartment block.

The hardened cement structure and near-two-foot-thick blast doors were designed to take the full brunt of a nuclear or chemical attack. In time of crisis the bunker would have been able to hold more than 200 people.

Now, as the Null Stern Hotel, it can admit 14 guests, 8 in four double beds and the rest in singles.

Probably the most weird of all is that the hotel's idea seems to be a hit. With only 3 months of operation under its belt, the Null Stern has bookings up to 2012, but has also managed to get a nomination in this year's Worldwide Hospitality Awards.
Do you find these conditions too Spartan for you? With price this low, just $9-13 per night, it is better then sleeping in the dumpster.