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

Hollowed out cedar log tubs set in an ancient towering forest.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

100-year-old shipwreck you can walk up to at low tide.

A massive sea stack famous for its appearance in The Goonies.

A large camera obscura, constructed entirely from digitally fabricated components.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

An unrealized dream to wirelessly electrify the entire Earth.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

This outpost of America's most popular fast-food restaurant is housed inside a palatial mansion.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

The saddest little diner in New York.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

This nearly invisible wire transforms much of the city into one big, symbolic home on the holy day.

The former sign of this immortal music venue is just that--undying.

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

Red frames showcase remnants of one of New York's original subway stations.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

The greatest real estate coup of all time.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.