Iconic red and white plaques show the creative names invented to navigate the city streets.

It would take you approximately an hour and a half to walk to the end of Mexico's largest pier.

At least seven hues of blue and turquoise make this freshwater lagoon unique.

A hidden treasure of an abandoned city lies deep in the jungles of Campeche, Mexico.

Found down a long dirt road, a sacred Mexican cenote and 18th-century hacienda remain hidden.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

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

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

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

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

The first public library in the Americas has more than 45,000 books dating back to the 15th century.

This cluttered cantina is famed for its cheese-spiked, raisin-flavored liqueur.

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

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

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

Special benches that play Chopin's music are scattered throughout his native city.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.