Eighty million natural history specimens call this gargantuan museum home.

The 32nd president's sprawling cottage sits on an island enclave jointly managed by the U.S. and Canada.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

The world's largest piece of copyrighted artwork.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

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

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

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A bright little alley in La Boca is a part of tango history.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Canada's subterranean Cold War museum has doubled as a movie set.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

A rare venue to buy specialty maps.

These prehistoric replicas were based on actual skeletal remains.

Millions of numbers carved in glass represent the tattoos forced upon victims.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

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

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

One of the largest helium balloons in the U.S. is a 112-foot ginormous orange.