A beautiful geyser under environmental threat.

A statue honoring 44 continuous years of greeting passing ships.

This kitschy tavern is also home to rare early editions of "Treasure Island."

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

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

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Unusual house, in an unusual neighborhood, home to some very unusual peanuts.

This failed condo development was reborn as a street art hub.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

A view-altering observatory at the University of Texas.

Free public park and gardens filled with peacocks and peahens.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The land is home to swimming ponies and a legendary 18th-century treasure.

Yo, Adrian!

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.