The first declared National Monument in the United States.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

This small cafe aims to empower acid attack victims and stop violence against women in India.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

The world's second-largest sundial, made entirely out of stone.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Most-visited and most-photographed slot canyon in the American Southwest.

Once the center of Gold Rush mania, now the starting point for the Yukon Quest sled dog race.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A museum and shop on Bourbon Street located in the French Quarter.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This black shoreline is made up of exploded lava particles.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

The fifth-longest natural arch in the world, and the longest outside China.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

This beautiful eden was once the vacation home of Tahitian royals before Marlon Brando bought it.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

The arch that celebrated the completion of the Lincoln and Victory highways.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.