If conventional hotels, with their large-screen HD televisions, ultra-soft goose down bedding and three pools, are getting a little boring, here are some alternatives that may put the excitement back into your vacations.

When they named this bed & breakfast, Dog Park Bark Inn, they were calling it exactly as they saw it. Located in Cottonwood, Idaho, the world's largest Beagle can sleep up to four people and has all the modern amenities, including a full bath - no television however. To read more details check about this unusual hotel, go to their website www.dogbarkparkinn.com.

Always dreamt of spending the night in a cave? Here's your chance - and while you won't need to carry your sleeping bag, a swimsuit may come in handy at the hotel's Jacuzzi. Located in Parethon, Arkansas, the Beckam Creek Cave House has been carved inside a setting of 530 acres of rock. Check out the rest of the hotel at www.ozarkcave.com.

Ever wonder how it feels to sleep underneath the ocean - Guests at the Poseiden Resort in the Bahamas, take an elevator 40ft under the sea, and stay in one of the 24 suites or the in the sole luxury apartment. With 70 percent of the room(s) encased in see-through acrylic casing, guests can 'really' experience what living the in ocean feels like. For additional fun pictures and information on this hotel, go to www.poseidonresorts.com.

And finally, if you wish to experience a unique room every single night of your vacation, you will have to visit Propeller Island City Lodge in Berlin, Germany, where each of the 30 rooms is deemed a living piece of art, by German artist, Lars Storchen. Here are some examples of the rooms you will be able to choose from.

In this topsy-turvy room, the furnishings hang from the ceiling, while the guests sit and sleep on boxes that lie under the floorboards.

Described as the only hotel suite, this room allows the guest(s) to sleep either in the two cages, or on a normal bed. The guest(s) can even allow others to peek into the room by simply raising the red curtains. For additional fun rooms check out : www.propeller-island.com/rooms_neu/room_detail/01/index.php

If you know of any other unusual hotels, be sure to share it with us by adding your comments below.

Source: Telegraph.co.uk