The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Go inside to really appreciate this 500-year-old technological masterpiece.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Regency-era excess on the English Coast.

Banksy gives themself artistic license with this piece of London street art.

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

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The most famous location in China was home to whole dynasties worth of imperial rulers.

An out-of-place slice of France, smack in the middle of Shanghai.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

China's most famous acrobatics act.

The once highest point in China blends symbolic design with a kick of adrenaline.

The world's largest wooden structure.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An ancient Egyptian temple in the middle of Madrid, Spain.

The only castle in North America to ever house European sovereigns.

Mexico's astounding mummy museum with "the world's smallest mummy."