The world's longest known cave system.

A life-sized memorial to Harry L. Collins, the official corporate magician of Frito-Lay.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

This magnificent Cincinnati graveyard is also a popular public park.

A headstone tells the sad story of a lost little boy and his pet dog.

An office built to look like a giant basket.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

An abandoned stretch of highway, deteriorating next to the operational one.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

A burial ground of rusting metal grave markers.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

This early version of the guillotine was used to execute the man responsible for its construction.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

These lush botanical gardens employ the most purrfect pest control force.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.