Made of 41,900 pieces of mosaic, it took two years to piece together this giant egg.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

A grassy pyramid named after a French battle.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

An abandoned dollhouse factory.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

Homemade rockets, dinosaurs, and robots make this New York small business much more than a furniture store.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

The oldest continuously inhabited street in America.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.