Da Vinci's equestrian statue, 500 years in the making.

This trail was once used to smuggle cigarettes, sugar, and other black market goods between Italy and Switzerland.

What appears to be an ancient Roman temple is actually a Catholic church.

This splendid tomb may look fantastic, but there's nothing in it...

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The legendary giant's severed hand sits on Antwerp's popular shopping street.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

Modernist design and funerary customs meet Spartan traditions in this one-of-a-kind graveyard.

Public water fountains built during the Ottoman Era still stand throughout this seaside town.

The ruins of this ancient fortification wall sit in the middle of a quiet, residential intersection.

The historic building has preserved human organs, unusual hexagrams, and scars from a political assassination.

Step inside an ancient beehive tomb built for a mysterious cult hero.

A preserved portion of an ancient Athens barrier is displayed in a hotel basement.

This striking sculpture of Icarus honors Greece's fallen flyers.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

The ruined doorway is a portal to the building's turbulent and torturous past.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.