in Berlin, Germany, you can ride this elevator up and down to get a close look at all the marine life swimming around the aquarium. Rooms are usually pretty affordable, about $150-200/night.Hotel Katajanokka
in Helsinki, Finland, is a converted prison that was originally built back in 1888. The rooms themselves are nicely updated and don't feel like cells at all, but you can see remnants of the hotel's former life in the corridors and by looking at the exterior. Rooms start at about $190/night.Kolarbyn Ecolodge
is less of a hotel and more of a camping experience, with these adorable, cozy huts out in the middle of nature. There's also a communal lodge with tables for enjoying the meal you cooked over the fire, and a floating sauna on the lake accessible by canoe! Generally you book the whole"adventure" as opposed to single nights, so prices run about $750 for a three-night stay.