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

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.

After a catastrophic forest fire, a Greek artist transformed scorched tree trunks outside an old sanatorium into this haunting sculpture garden.

This graffitied 19th-century building was a prototype of European industrial architecture.

An often overlooked ancient site in downtown Athens with substantial history (and nature).

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

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

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

Legend says this sacred tree was a gift from goddess Athena.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

These crumbling Nazi artillery bunkers are now fair game for massive graffiti projects.

This disused boat elevator was saved from the scrap heap so that visitors could tour its rusting skeleton.

Underneath a chalk hill in France lies what Hitler hoped would be the underground launching base for a devastating new weapon.

The tomb of a hard traveling saint is constantly covered in shoes as offerings to heal disabled youth.

These rustic holiday homes are made from discarded fishing boat hulls.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

This subterranean shrine beneath a bike rental store celebrates the iconic Italian scooter.

This park on the outskirts of Rome boasts two ancient Roman aqueducts and a medieval tower.

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

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

A modern sliver of architecture in Roma.

An enigmatic modern marker left next to a historic Roman site.