At first glance, the “Tunnel House” may appear to be an optical illusion and / or a digitally altered photograph, but it’s actually an art installation by Dan Havel and Dean Ruck, created months before this structure was to be demolished. Click here to see more of today’s most popular images, courtesy of Imgur.com. Continue reading to see five of the coolest homes ever.

5. Tiny Living Space

5. Swiss Army Apartment

3. $1-Billion House

2. Prefab Shipping Container Home

1. Underground Garage Home