This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

The third version of this tall sailing ship sits, rusted and burnt, in Lake Ontario.

Every equinox this Maya pyramid puts on a spooky ancient light show.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

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

The angel of death appears to weep black tears at this grave marker.

A walk through the historic city center, under the streets of Seattle.

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

A geological mystery on Camelback Mountain.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

A winding path built in secret on the edge of the continent.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

A fiberglass jungle, deep in the wilds of the Cleveland suburbs.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.