Fossils, railroads, and waterfalls!

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

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

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

These millennia-old murals once covered the walls of residential complexes across the ancient city.

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

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

It's believed this golden brick is part of the legendary lost Aztec treasure.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

This museum is dedicated to the little known ancient Roman history of Vienna.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

The Habsburgs' royal collections of art and wonders.

Baroque celebration of the end of the Great Plague of Vienna.

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

The most complete statue of this Aztec god sits a top a throne carved with images of hallucinogenic plants.

A whimsical European-style chateau that calls the coast of Chile home.

This immense scene of a cosmic battle between a jaguar and serpent illustrates the Aztec concept of the duality of life.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

This stunning and ethereal mural symbolizes the beauty, unity, and diversity of humankind.

The ruins of the "place of the cloud snake" sit in the middle of an urban environment.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

An island filled with hundreds of hanging, decomposing, decapitated dolls.