This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The biggest museum dedicated to insects in North America, one of the largest in the world.

A massive Montreal stadium that has seen nothing but trouble since its inception.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

An abandoned stretch of highway, deteriorating next to the operational one.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

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

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

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

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

This university transit system is a 1970's vision of the future.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Memorializing an American tragedy of massive proportions.

Steepest flood safety railway in the entire world.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.