Three-dimensional windows.

To which direction is this building facing?

Toilet break!

Top sides of both figures are the same length.

Transparent bikini bottom.

Tree and profiles

Tree and the roads.

Tree house.

Trees and animals.

Tricky cubes.

Tried counting the prongs in the figure?

Two beams, many problems.

Two faces or a vase?

Two faces.

Two lines are the same size.

Two man are the same heights.

Two old people, or...

Two shapes are in the same size.

Unfortunately your eyes are not fooled. :)

Upside-down lobby.