On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

An art deco ice cream shop covered in vintage train station tiles.

All that remains of one of the Civil War's more deadly POW camps is a simple flagstone.

The wooden octagon in which Huckleberry Finn and A Connecticut Yankee were born can still be visited in upstate New York.

A near tragic event on this bridge helped inspire the classic film "It's a Wonderful Life."

Launch vegetables using oversized slingshots at this Fingerlakes winery's roadside attraction.

Learn about the last river many crossed to find freedom from slavery in the United States.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

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

This Buffalo museum hides an Art Deco gas station designed by Frank Lloyd Wright.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

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

The world's only statue dedicated to the greatest Great Dane in comic strip history.

This manor in the woods memorializes one of the greatest birders of a generation.

This unconventional used book store was once in the news for the surprising act of burning books.

A magnificent church designed by world-renowned architect, Frank Lloyd Wright.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

A celebration of the animation wizard's childhood home and antique railroad memorabilia collection.

The first rural cemetery west of the Mississippi is home to the elaborate tombs of St. Louis' local beer barons.

Where the author wrote her beloved "Little House" books.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.