Famously misunderstood wonder of the ancient world

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The fairy tale castle of the "fairy-tale king."

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The oddly shaped, steam-spewing building is now an art studio and gallery.

Perhaps the only prehistoric monument with its very own public bus stop.

Arthur, Merlin, and Guinevere are among the largest and oldest satellite dishes on the planet.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

A brick-paved former section of the historic coast-to-coast highway.

The cluster of boulders near Fort Irwin is covered in military insignia.

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

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

Race through the maze, get your name on the sign.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Protecting the dead from opportunistic body snatchers.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

St. Augustine's record-setting narrow street was designed to protect against pirates.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Gutted airplanes slowly decay in a Florida field.