They were meant to be the most jaw-dropping hotels that the world – and even the moon – had ever seen.
But from diamond-shaped orbs to Aztec-shaped pyramids, some hotel designs turned out to be just too ambitious and expensive.
Scroll down to see some of the most amazing hotels that were never built…
The Fourth Grace, Liverpool
The Fourth Grace Hotel was designed by renowned British architect Will Alsop and was set to be built on Liverpool’s Pier Head.
It was described as looking like an ‘ethereal cloud’ while others likened the extraordinary concept to a diamond.
Unfortunately the project to build the stilt-bound structure fell apart in 2004, with organisers blaming financial difficulties.
Full Moon Hotel, Baku
The Full Moon Hotel was planned to be a huge resort on the banks of the Caspian Sea in Baku, the capital of Azerbaijan.
The Full Moon would have been 521 feet tall and resembled Darth Vader’s ‘Death Star’ from one angle and London’s Gherkin from another.
It would be able to accommodate guests in 382 rooms over 35 floors – but the project has been put on hold.