At just 51 feet and 10 inches long, it's the shortest street in England.

Follow the original medieval paths that wind through this intriguing section of the city.

One of the largest mechanical models of the solar system in the world.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

Seat of the Duke and Duchess of Devonshire for centuries.

The first declared National Monument in the United States.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The silly symbol for an underground protest group is now scattered around the city.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

Southern Italy's spinning top village.

The world's most active stratovolcano is almost always erupting.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Home to drunken tower-climbing goats... seriously.

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