You can look at department stores that are typical anchor tenants like Macy's, Sears, Carson's, Nordstrom, and JCPenney. Thousands of locations have been closed and the trend is expected to continue; new ones aren't being opened.

We know that when a mall loses its anchor tenants its demise accelerates as its smaller retailers depend on the anchor tenants to pull in foot traffic. It's a doom feedback cycle.