The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The "lovely red Vega" of the legendary record-settling pilot.

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

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

Look closely and you’ll notice that the color changes a third of the way up the tower.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

Africa's Venice on stilts.

The Voodoo Superstore of the world.

Concrete strongholds stand guard over the Golden Gate.

Frank Lloyd Wright died a year before construction on his largest public project even began.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

This unusually circular centenarian barn became a Route 66 icon.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

Community bookshelf of 25-foot-tall book spines.

This recently restored timepiece has stood all around Kansas City.

The famous greeting card maker owns a collection of paintings by the famed surrealist.

The only diamond mine in the world where you can keep what you find.

A home designed to be on the cutting edge of comfortable, low-cost living.

This former mining town was named the most toxic town in America.

An oil baron's wild paradise and the winner of an ill-fated air race.

Nature's biggest mammal swims in landlocked Oklahoma.