Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Known as the Royal Palace of the Euganean Hills, this often overlooked castle has been home for multiple noble families over the centuries.

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

The 1,000-year-old abbey is the birthplace of modern musical notation.

The hallucinogenic center of the ancient world.

Dedicated to the god Dionysus, this theatre was used for both musical and theatrical performances.

This little-known, 35,000-specimen collection in Greece is a lepidopterist's dream.

A lake island of richly decorated monasteries, where a fugitive ruler met his end

One of the most photographed locations in the entire city.

Believed to be the only Orthodox church in the world that features a free-standing pulpit.

This former mill comes to life during the Christmas season.

Monasteries on rock pillars, once accessible only by frayed ropes.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

An arts and culture melting pot inside an old roadside inn from the Ottoman era.

A two thousand year old brothel uncovered in Northern Greece.

A little-known park with unusual, half-ruined structures and a mystical energy.

An abandoned Byzantine fortress and notorious prison.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

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

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

A twisted steel beam from the wreckage of the World Trade Center is the centerpiece of this memorial for those who died on September 11, 2001.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.