One of the oldest and tallest lighthouses still in service on Lake Michigan.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

Volo Bog is the only open-water quaking bog in Illinois, and also the southernmost open-water quaking bog in North America to exhibit all stages of bog succession.

A six-story-tall golden pyramid, surrounded by a moat.

The oldest functioning restaurant in the state of Illinois, operating since 1847.

Museum dedicated to the art of cutting and polishing stones.

The Golden Dome is the most recognized building on the beautiful campus of the University of Notre Dame

The longest enclosed pedestrian bridge in the world spans 14 lanes of traffic and six rail tracks, all while lighting up the night sky.

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

This famous church is adorned by a mural commemorating the independence of Vatican City.

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

Two thirds of this Montreal neon icon has survived to flash another day.

The highest bridge in America was built for an almost unnervingly small amount of money.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

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

Willy Wonka would love this weird half-a-home.

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

This giant roadside fruit is home to an array of apple-based treats.

A wall of chewing gum moonlights as collective art.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Quite simply the largest tree in the world (by volume).

The magic's in the hole!

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.