Here are some cool optical illusions from Swiss artist Olivier Lovey. The large-scale works of art blend seamlessly into their surroundings, making it hard to tell what’s real.

For more of Lovey’s impressive works, follow him on Instagram at @olivierlovey.

This is a long hallway... Or is it?

We can only imagine the markup on a floating home like this.

Somehow, we don't think these stairs just lead to the next floor up.

A hollow building!

Lovey turned this billboard into a reflection of the mountains across from it.

Could it be a floating window in the middle of the forest?