Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

An obscure public service from the U.S. government that redeems burnt, moldy, and soiled old greenbacks.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

An Industrial Revolution-era public work that purified water using nothing but sand.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

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

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A beautiful Victorian-era cemetery, complete with a miniature village.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

DIY collection of eclectic holdings.

The sculpture's largest spire points directly toward the North Star.

The first, and perhaps only, monument dedicated to Wikipedia.

The world's only statue dedicated to the greatest Great Dane in comic strip history.

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

One of the largest Buddhist communities in the West sits on the site of an old hospital.

A basement pool hall is the front for some of the best Dominican food in New York City.

This poignant display is now a memorial to these regionally extinct species.

Deliciousness abounds at a Guatemalan restaurant masquerading as a pizzeria.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

A railway station takeout shop sells boxed meals in containers shaped like trains and snowmen that hold the country’s abundant regional delicacies.