This former railroad bridge was named after the great river that once flowed below it.

This community-driven organization uses education and eco-friendly technology to protect the environment.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

Years of neglect and nature took a toll on this 19th-century lighthouse.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

The world's brightest bioluminescent bay.

A famous flea market artist's studio that's full of odds and ends.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

The state bird of New Mexico, constructed entirely out of garbage.

This high desert botanical garden is a unique display of Northern New Mexico's geology.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

This sparsely populated town offers a look back in time.

A sculpture of a flying hawk made from colorful car doors.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

A serene garden path lined with 36 haiku stamped into clay stones.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

One of the American Southwest's most extensive collections of Navajo rock art.

A sprawling collection of over 106,000 toys from around the world.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.