An enormous park-like oasis, full of famous Chicagoans' graves.

A lush green oasis in the middle of Chicago.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

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

Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.

Every year, the colorful murals of Montreal get a complete makeover.

A historic Montreal market that was the city's agricultural hub for over century.

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

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

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

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

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

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This urban oasis is a marvelous meld of music and landscape architecture.

One of the largest underground systems runs under Canada's largest urban center.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

Faces carved into the cliffs create an otherworldly walking trail.

A forsaken wonder in the middle of the East Side neighborhood.

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.