This is not optical illusion but it’s a creative installation by Phillip K Smith III for Lucid Stead in Joshua Tree, California. The artist modified an existing 70-year-old homesteader shack by introducing mirrors to create the illusion of transparency.
If you're searching for a hotel or restaurant to rest or for late night dinner, try one of these strange hotels that offer a unique and bizarre experiences.
Cross a hammock with a tent and you get the Tentsile, a portable shelter that does not require an even surface. A complementary stand is also being developed so it can be pitched virtually anywhere. Tentsile is a great shelter for traveler out there.