An architect's childhood fantasy treehouse made real.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

Hindu temple of the dead home to hundreds of long-tailed macaques.

The largest earthwork effigy in the world.

The final resting place of the great navigator, or maybe his brother.

This stunning concert hall has become a symbol of Iceland's national recovery.

Historic medieval fortified city in southwest France.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

Visit the monolithic tomb of America's most famous general.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The highest bridge in America was built for an almost unnervingly small amount of money.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Home to three historic ships from the age of Vikings.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The trials and tribulations of marking Poe's grave.

Dramatic river bend surrounds a natural red-rocked pedestal.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

The modern birthplace of Irish freedom.

Experience a charming 1930's version of "infotainment."