This natural sea cave hides a small wonderland of natural turquoise beauty.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

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.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

A Beaux-Arts triumph set to become Ford's innovation campus

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This historic library honors the legacy of the British Empire's first children's librarian.

Known as "Toronto's Flatiron."

A monument to the 17,000 Chinese who worked and died to build Canada's Pacific Railway.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.

This massive, ancient stone was disassembled and then put back together again.

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

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

A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

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

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This Hindu temple is an architectural marvel designed and built according to ancient Indian principles.