A striking depiction of Teotihuacan's mysterious "Spider Woman."

This pre-Hispanic apartment complex also includes ancestral paintings that point to its military past.

Dating back to the second century, vestiges of prehispanic mural paintings are found in this underground palace.

Cool down and fill up after visiting Teotihuacán at this bar and restaurant in a deep, underground cave.

This archeological site hidden behind Teotihuacán's pyramids shelters 1600-year-old murals.

Colonial architecture meets urban art in this sprawling open-air gallery.

This art shopping center still boasts pieces of its past as a textile factory.

The walls and ceilings of the "Mexican Sistine Chapel" are almost completely covered with mural, sculpture, inscriptions and oil paintings.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

This post-Ottoman era church in Athens was built by locals to serve the residents of Anafiotica

A martyred saint built a nunnery and school for girls here known as the "Parthenon."

The burial place of one the greatest Arthurian authors, with the sword in the (grave)stone.

An ancient site that has revealed incredible artifacts including portions of the Themistoclean Wall.

This church was constructed on the site where St. Philip the Apostle preached to the ancient Athenians.

A former military hospital is now used to study and preserve artifacts of the Acropolis.

This Ottoman-era Greek Orthodox Church was built to honor Agia Pareskevi, a Christian saint.

The home of Greece’s national poet sits crumbling in the middle of a popular tourist district.

This Ottoman-era church is hidden amid a busy tourist area.

An important example of architectural history slowly decays in the city center.

This building displays the scars of the “Dekemvriana,” a dark time in modern Greek history.

Underneath one of the region's most historic roads lies the home of Plato's successor.

These ancient ruins hide in plain sight next to a dessert shop.

The ruins of an ancient fortification wall sit in front of and underneath this boutique hotel.