If you're looking for a weekend getaway, these 24 unusual hotels shared by Atlas Obscura will make your trip an unforgettable one. The list ranges from a glass treehouse hotel to novelty hotels (like this one, shaped like a giant intestine), and so much more. I'm currently having FOMO over the fact that I've never stayed in any of these fantastic places before.

In the United Kingdom's one and only residential library, you can rent a room and sleep while surrounded by books. Gladstone's library is located in Wales and looks like a dream vacation for any book lover. Guests even get access to the public reading rooms until 10pm, far after the library closes.

If you're in search of a truly deep sleep, you can find it here at this hotel that sits 1,375 feet underground in Snowdonia National

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