6 East 57th Street • New York
NET VALUE: $148 million
CHANGE DURING PRESIDENCY: $217 million
Online shopping has wreaked havoc on buildings like this, a glitzy 65,000-square-foot space just off Fifth Avenue in the middle of what was once one of the busiest retail locations in the world. It hasn’t helped that Nike abandoned its five-story flagship in 2018. Tiffany, which has been subleasing Nike’s old space while its own Fifth Avenue hub is being renovated, is slated to vacate in 2022.