Tower of Pisa

Rescuing World Monuments
By Rob Meyer

The Leaning Tower of Pisa is just one of numerous world-renowned structures that experts have struggled to protect in recent years. Some, like the Washington Monument, required reasonably straightforward restorations, while others, such as Egypt's Philae Temple, called for truly imaginative conservation strategies. And then there's New York's CitiCorp Headquarters, whose emergency repair in the late 1970s may have saved it from sudden, catastrophic collapse. What follows are some of the more prominent conservation efforts from the past 25 years.

Rob Meyer is Production Assistant for NOVA Online. Jeff Oar, NOVA Online intern, conducted research for this piece.

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