According to the legend, this structure was built in a single night with the help of the devil.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

This medieval city gate is now a blend of the past and the modern world.

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

This stave church nestled in the Catskills was built in the 1960s by a community of Ukrainian immigrants and refugees.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

A miniature city within a city, complete with traffic signs, signals, and streets to teach Baltimore's youth traffic safety laws.

A hidden alley in urban Baltimore is a haven for graffiti artists.

This grove was planted more than a century ago by the War Mothers of World War I.

A small 19th-century graveyard tucked away in the middle of a suburban neighborhood.

Over a century old, this restored Victorian building is surrounded by a lush garden filled with rare palms.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

At this 1940s-era neighborhood favorite, you can still drink a cherry phosphate.

A massive white oak tree provides a beautiful canopy near a suburban shopping center and stood before the signing of the Constitution.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

Oldest existing wire suspension bridge in the United States.