Millions of numbers carved in glass represent the tattoos forced upon victims.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

These whimsical works of art tell the story of the city's past and present.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Historic medieval fortified city in southwest France.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

This rock resembling a turned-up boot has become the symbol of St. Ingbert.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

Today this former Nazi concentration camp stands as a poignant memorial to the victims of fascism, and a warning from history.

There has been an astronomical clock on this spot since the 14th century.

It's said the devil used this mushroom rock as a table for a late-night meal.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

The castle where the Marquis de Sade lived out his darkest fantasies.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The bears of Bern have been a city highlight for over 500 years.

This simple apartment may have inspired some of the most important theories in the history of science.