Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This unassuming riverbank is Missouri’s first designated site in the National Underground Railroad Network to Freedom.

This mausoleum is the final resting place of one of St. Louis's richest and most tragic families.

A chessmaster's dream destination.

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

This sidewalk tribute honors Colorado's great culinary creation.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Known as "Toronto's Flatiron."

The remains of a once-famous hotel that also acted as an artist colony.

A space-age 1950s pavilion on a secluded path is full of Toronto history surprises.

This half-ton piece of the Alps sits at the base of the CN Tower.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

This knick-knack-covered house (complete with a matching van) is a charming oddity in the middle of a modest downtown neighborhood.

Along with his smaller donkey pal, he guards the museum’s exhibits and memorabilia.

A miniature representation of Canadian cities and landmarks in incredible—and sometimes hilarious—detail.

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

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

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