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

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A mocking tribute to the past and modern leadership of Prague.

This artificial cave looks like something out of a fairytale.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

You thought Santa Claus didn't exist, but it turns out you were wrong.

This candy shop has been serving up sweets to the Louisville area since the 1850s.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

This abandoned cemetery has a dark past of bodies buried over bodies.