The entire length of the border is marked by a 20-foot-wide slash through the trees.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

On the waterfront of Sydney, Nova Scotia, a 60-ft. fiddle greets incoming ships.

A charming museum of natural history featuring dioramas and exhibits made entirely by college students.

A monument marks the beginning of the longest north-south road in the United States.

The world's longest covered bridge is a quaint and incredible wooden tunnel.

Impossibly life-like natural history models created out of glass by a father and son.

Two thousand artifacts from around the world collected by one woman who loved to travel.

This impressive Boston holy house is the American mecca for Christian scientists.

An enormous, inside-out glass globe built in 1935.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

A centuries-old church stands as a testament to Boston's "father of architecture."

Narrowest house in Boston.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

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

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The most decorated dog of World War I is preserved in the Smithsonian.

America's oldest archaeological site or a muddled case of wishful thinking.