The third-tallest lighthouse in the United States stands as a reminder of Atlantic City's early days.

A trompe-l'oeil statue honoring the first guide dog in North America.

An abandoned military bunker that has been transformed into an artist's paradise.

Thomas Edison's home and final resting place also boasts an impressive garage, where some of the earliest electric cars are on display.

Along a busy beachfront strip you may hear Frank Sinatra singing from one boardwalk home.

The final resting place of a famous 19th-century murder victim whose identity is still a mystery.

A world-class collection of mechanical musical instruments and automata.

The site of one of history's most indelible and horrific tragedies.

Prank calls to this place, originally the "Tube Bar," inspired the creation of a Simpsons character.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Rippling sand dunes frozen in the Arizona rock.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

This tiny chapel withstood a massive mudslide and flash flood.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

A plaque on the base of this statue holds a bewitching design.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This medieval castle was reconstructed by Carlo Scarpa.

A gorgeous example of 13th-century Gothic architecture.

Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

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

These elaborate gothic monuments honor Verona's medieval lords.

Despite their macabre past, these hooks are said to bring good luck to those who touch them.