A popular legend claims that the famous pizza was invented at a restaurant in this alley.

This magical-looking island is notorious for the misfortunes suffered by its owners.

Italy's third-largest Roman arena gives a peek into the underground operations beneath the ancient spectacles.

A submerged archeological park still holds the wonders of a Roman Sodom.

Giant marble phalluses on the sacred island of antiquity.

This Turkish cave boasts some rather bizarre associations with the King of Mount Olympus.

The ancient latrines of the Greeks, in all their public glory.

Seven early Christians were sealed into a cave where legend has it they slept unharmed for centuries.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

This pink watchtower served as the seat of the Greek government after independence from the Turks.

This seaside sanctuary was once one of the most important religious sites for women in ancient Greece.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

These ruins of a sacred Ancient Greek temple stand next to a luxurious modern resort.

Gladiators once walked this ancient, subterranean passage.

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

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

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

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

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

These caves secretly held national treasures during World War II.

A Byzantine-era church hidden in a wooded area below the Acropolis.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

Elaborate stone houses constructed from the ruins of war.

This Byzantine Church was moved from Paris to Athens block by block.