These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

The unusual burial monument of Arizona's first governor.

A museum and tribute to a brave profession.

A former department store turned into a quirky restaurant.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The first permanent memorial to a unique secret weapon of World War II.

A geological mystery on Camelback Mountain.

This small, unassuming street is now a canvas for color and creativity.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

This chimerical bridge/tunnel appears to dead end right into the sea.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

This house is one of the most colorful in the country, and is the last remaining example of a historic villa.

This Singaporean food-court stall was home to the world's cheapest Michelin-starred meal.

Singapore's landscaping project is home to 18 incredible Supertrees.

This French colonial post office is arguably the grandest in all of Southeast Asia.