The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

This old steel industry company town has a tradition of parking cars on the sidewalk so people can walk in the narrow streets.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

An idle pastime becomes a record holder in Boys Town, Nebraska.

This colorful statue welcomes visitors to a Barcelona park.

An early 20th-century bullring converted into a modern shopping center.

The colossal cartoon man stands outside a Nevada museum.

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

An obelisk commemorating Lincoln's role in connecting the coasts.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.