10,000 flowered plants bloom in the City of Roses.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

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

A rustic house where intellectuals and investors tried to put an end to Cold War nuclear armament.

This engineering marvel is the longest bridge in Canada and one of the longest spans in the world.

Twice a day, the water of the Petitcodiac River flows upstream in a surfable wave.

Cape Breton landmark filled with recognizable faces.

A quarter mile off the coastal tip of Maine you'll find the "Beloved Island" of Franklin Delano Roosevelt.

Iconic rock formations that allow for exploration during high or low tide.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

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

Cliffs that hold fossils, including the earliest known reptile, dating back more than 300 million years.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Extraordinary objects lurk in this quintessential regional museum.

Where pardoned turkeys once spent their all-too-brief final days.

A former major munitions plant that has been converted into a sprawling art space.

This sprawling farm was once a Cold War-era hideaway for the nation's top diplomats.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

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

The land is home to swimming ponies and a legendary 18th-century treasure.

This giant disembodied horse head seems to balance impossibly on its nose.