These enigmatic columns tower over the ruins of an ancient Toltec city.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

CDMX's home for the world's culinary delights.

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

The stoutest tree in the world.

The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

This beautifully deceptive waterfall is something far different from what it appears to be.

The winter home of millions of migrating monarch butterflies.

Mexico's astounding mummy museum with "the world's smallest mummy."

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Frida Kahlo's childhood home, now a museum of her life and works.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

Extraordinary sculpture garden created by an eccentric English poet.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.