A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

This giant shopping mall still holds signs of its automotive past.

Nuclear waste dump site now an environmental sanctuary.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The remains of a ruined mansion memorialize the 1906 earthquake.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

San Francisco's newly reopened hands-on science museum.

This shop specializes in oddities and Victorian-inspired wonders.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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

The world's longest known cave system.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

Dozens of padlock-trees along the Moscow River.

Former headquarters of the KGB.

World's largest bell sits on the grounds of the Kremlin in Moscow.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Stonehenge has nothing on Castlerigg’s views.

A six-ton wedding present for the King of the Scots.