This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

From grand battles to daily life, this Spanish museum offers a view of world history in miniature.

This house's itty bitty size means no humans allowed.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.

Vibrant street art created with mixed media.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

One of seven Jewish catacombs in Rome and one of only two open to the public.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

The birthplace of America's favorite fruit-flavored mystery dessert.