A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Once one of the largest producers of pig iron in the world.

The strip club's VIP lounge is actually a rare repurposed Futuro House.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

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

One of the last of the great 1920s movie palaces is a Floridian Greco-Spanish-Persian dreamscape.

An underwater statue of Christ blesses the depths off Key Largo.

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

One home in the historic strip hides secret compartments and the ghostly songs of long-gone canaries.

The shortest river in America flows for just 201 feet.

High in the Rockies the third largest statue in the U.S. opens her welcoming arms, and lights up the night sky.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

Launchpad for the US military’s dead mouse operation to battle millions of snakes.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A two thousand year old brothel uncovered in Northern Greece.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

This 13th century Gothic brick castle is the largest in the world by surface area.