The empty tomb that houses the memories of Roy Bertelli's revenge.

The poet’s boyhood home is now dedicated to celebrating his life and legacy.

One of the largest carillons in the world, this giant instrument has 67 cast-iron bells played by a keyboard.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

Abraham Lincoln's likeness rests at the top of this giant totem pole.

Train cars and railroad artifacts abound at this restaurant devoted to railway history.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

When ecosystems collide in the arid Southwest.

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

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

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

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

A downtown park built on top of unclaimed graves.

A technicolor place of worship for Elevationists.

A Prada store in the West Texas desert that is never open for business.

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

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

An unprepossessing stone marks the last resting place of one of the most accomplished Native Americans in history.

This restored house is like a time capsule of the president's unconventional inauguration.

An elaborate memorial to a man local legend says died of a broken heart.

The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.