This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

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

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

Some charming, but sadly, unloved animal statues call this park home.

Mexico's National Sound Library houses music, recordings, and voices from the nation's rich past.

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

This architectural wonder of Mexico City houses several art schools and national research centers.

Mexico City decorates its facades with extravagant floral arrangements every year.

This once-abandoned mansion is now a dreamy event space.

This extraordinary art museum is like a secret world on the edge of Mexico City.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

Beneath the most controversial monument in Mexico City is a cultural center that exhibits only digital art.

An airy Art Deco space devoted to the weird and wonderful folk art traditions of Mexico.

A barbarous band of serpents guard the bases of these Aztec temples.

The ruins of an ancient temple to the Aztec wind god discovered in the middle of a metro station.

This old-school café is famous for serving coffee, chilaquiles, and the Cuban Revolution.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

Where layer cakes tower above one’s head and there is never a shortage of icing.