A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

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

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

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

This sidewalk tribute honors Colorado's great culinary creation.

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

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

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

This statue of an obscure comic strip hero stands as a tribute to patriotic service and a cautionary tale about embracing fads.

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Rowdy rebels fortified this home during the first popular uprising in United States history.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

An innovative attempt to break a siege in the American Civil War still scars the earth today.

This historic mansion was built as a symbol of love between a husband and wife.

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

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

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 lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.