There aren't too many operational funiculars around, but Pittsburgh has two!

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

The last street in Pittsburgh that's paved with wood.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

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

The world's brightest bioluminescent bay.

An important Mayan religious and trading center dating back to 200 BC.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

This public space is speckled with the eerie remnants of a defunct amusement park.

A flooded Mexican cave that hides a river beneath the water.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Elvis's own personal tropical hideaway.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

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

The South's nickname was supposedly born at a former bank in New Orleans' French Quarter.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."