A former waterfront market is now in the center of town due to some interesting Boston engineering.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

A relic of FDR's brief foray into utopian urban planning.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

The likeness of the Baltimore music icon was unveiled in time for the anniversary of his Senate hearings on music censorship.

Wedged between two sets of row houses is an awkwardly located family graveyard.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

A small 19th-century graveyard tucked away in the middle of a suburban neighborhood.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

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

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

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

The institution is sitting on a goldmine of 21,000 paints, varnishes, pigments, and primers preserved for posterity.

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

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

A line of blue paint marks the route of the inaugural parade.