Canada’s surprisingly controversial monument to Dwight Eisenhower.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

Curtiss is a forgotten figure in the early history of flight.

The profile of one ill-fated deacon was emblazoned forever on this church window during the Halifax explosion.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A mysterious spot where the laws of gravity seem not to apply.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

Canada's oldest sugar maple has been growing since around 1500.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Decades before the scandal, this staircase on the river was a literal "water gate."

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

It would take 35 firetrucks to fill this enormous glacial pothole.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

A Yiddish theater turned movie house turned rock and roll landmark turned gay disco turned bank.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

One of the indelible moments of the American Revolution took place at this location.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Abraham Lincoln's likeness rests at the top of this giant totem pole.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The Incredible Hulk, Yoda, Mulder and Scully, and many many others watch over the mean streets of Toronto.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.