4. Karostas Cietums, Latvia

Karostas Cietums, Latvia

Have you ever wondered what living in a prison must be like? Since you (hopefully) aren't going to find that out the "real way," better book a room in Latvia's Karostas Cietums, definitely one of the weirdest hotels in the world. A former military prison, the hotel gives you the opportunity to live the life of a convict – with the characteristic prison bunks, the "prison officials" giving you a hard time and even the typical food. Tempted yet?

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