Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

A collection of full-size movie monsters opened to the public.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This monument is dedicated to Balto, the heroic Alaskan sled dog.

Avoid gangster interaction while window-shopping.

Read a book next to a Midtown waterfall.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

An extensive collection of fine art devoted to man's best friend.

Roman ruins, natural methane fires and a lovely beach.

Flames have been burning within this mountain for more than 2,500 years.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

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

This is the house that spite built.

The narrowest house in America is seven feet of pure spite.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

A superbly preserved example of Georgian residential architecture that was once home to one of the founders of Alexandria, Virginia.

An original apothecary from 1792.

This small pedestal marks the spot of the first lot of land sold in Alexandria, Virginia in 1749.

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

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

The house where John Wilkes Booth conspired with his co-conspirators.