Europe's official "zero-level," the equator of elevation.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

This camera store in Milan holds one of Europe’s largest collections of luxury-antique cameras.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This modest marker near Notre Dame identifies the very center of Paris.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

One of Jeff Koons’s largest sculptures and his first commemorative work.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

This emotive sculpture was originally created for the 1878 World's Fair.

Marie Antoinette and Napoleon Bonaparte were fans of this 200-year-old French chocolatier.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

This 400-year-old tree is actually an immigrant from North America.