Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

So many migrating birds roost on the bridge, it has a special summer speed limit.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A student designed this 3D-printed scale replica of the entire university campus.

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

This museum offers an actual time machine back through Colorado's past.

A downtown park built on top of unclaimed graves.

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

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

A series of playful yellow penguins share a serious message about the environment.

This centuries-old rooster survived a devastating fire.

A stunning Victorian abbey and walled garden on a lakefront.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

This sidewalk tribute honors Colorado's great culinary creation.

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

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

This iconic science fiction house still looks like something from the future.

A research lab and hands-on museum where visitors can experiment with retro technology.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

One of the few surviving Panama Canal steam shovels stands outside a tiny Colorado mining museum.