This quaint museum lets you take a ride on its antique carousels.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

The first home of the doomed aviatrix Amelia Earhart.

Cannon designed to fire an atomic warhead.

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

Site of the 1926 murder trial of Ernest Burkhart who was involved in the "Reign of Terror."

Built following the War of 1812, this fort has withstood hurricanes for centuries.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

This now-deactivated naval base defended the Florida coast for centuries.

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

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

A monument celebrating the idea of reaching inaccessible places.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Dedicated to the American general whose reply to a German demand for surrender was simply "Nuts!"

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A whimsical bridge adorned with decorative dragons.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This spectacular track has run continuously since 1882.

The largest source of fossilized insects anywhere.

This super steep hike ascends 2,000 feet in less than a mile.