In this week's comments update, readers are discussing the news that the world's largest cruise ship has set off on its maiden voyage amid controversy over the environmental impact of its new fuel.
The 20-deck-high Icon of the Seas, which has room for 7,600 guests and 2,350 crew, set off from Miami last month for its first cruise in the Caribbean.
World's largest cruise ship sets sail amid sustainability concerns
"The stuff of nightmares" 
Dezeen readers were quick to question the rationale. Henry felt it was "a physical embodiment of the madness of our species". Cezary Marek was also far from impressed, calling it a "grotesque and pointless waste of resources".
For Alfred Hitchcock, it was "the stuff of nightmares". They continued "I can't think of many things worse than being trapped on a huge floating, gimmicky hotel full of imbeciles". John Lakeman was in the same boat and thought that "it sounds like a nightmare vacationing with 7,000 people!"
However Frank Lloyd Wrong raised the point that "the buffet must be epic".
Would you voyage on the world's largest cruise ship" Join the discussion ?
Junya Ishigami reveals one-kilometre-long museum emerging from Chinese lake
"Sublime"
Also attracting interest in the comments section was Japanese architect Junya Ishigami's one-kilometre-long Zaishui Art Museum on a lake in China, which features openings that let water flow over the museum floor...