A forgotten tribute to a South American hero hidden in a cluster of traffic islands.

World War II-era Nazi compound nestled in the Santa Monica hills.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A dilapidated dock tells the story of Titanic’s missed arrival.

The notorious headquarters of a corrupt political machine.

Feast on some of the finest momos in all of Queens.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

This hotel was the site of major events in sports and radio history. It was also used as a detention center during World War II.

The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

A much-maligned monument to teetotalism.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

These unusual rooms on wheels are holdovers from the 1960s.

This pun was simply waiting to come to life, and one defense contractor made it so.

A classic advertising icon immortalized in regal bronze.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This tree has witnessed nearly 1,000 years of history.

Visible below the waves are memorials to the city's Gold Rush dead.