Coins and medals straight from the mint await visitors to this shop in the nation's capital.

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

Go take a picture with the inventor of the daguerreotype photographic process.

The National Park Service’s best-kept secret with views that rival any in D.C.

The trials and tribulations of marking Poe’s grave.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Home to items never before seen by the public.

The history of Tel Aviv told through a work of art.

This full-sized orange tree lives suspended in mid-air above the streets of Jaffa.

A modern-day cabinet of curiosities housed in a 300-year-old inn.

A square-domed symbol of resilience in the heart of the old Jewish Ghetto.

This statue is the only female representation of Rome's "talking statues."

A statue representing a lost Roman profession that was vandalized for centuries.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

This Masonic lodge was the first major private building to be constructed in Washington, D.C. after the Civil War.

Over the last century, this elegant columned facade has been home to the headquarters of a bank, several nightclubs, and a restaurant.

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

This unassuming passageway played a key role in one of the most important events in U.S. history.

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

This heritage museum highlights the importance of the dairy cow as a vital part of rural Maryland's past, present, and future.

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

Giant busts of 42 U.S. presidents sit, crumbling in a field in Virginia.