The 35 Major Design Mistakes That Everyone Should Avoid

For as long as there’s been great design, there’s been really, really bad design. Popcorn ceilings, shag rugs, beveled glass—the list goes on. In honor of ELLE Decor's 30th anniversary, we're taking you back in time for a look at some of the industry's biggest design crimes. Here, some of our go-to interior decorators expose major design disasters you should avoid at all costs, from 1989 to today.

Can you guess what they are? Read on to see if you pass the test.