San Francisco Bay's ghost town.

The headquarters of the semiconductor giant has a 10,000-square-foot museum.

Explore the History & Technology of Electronic Communication

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Series of storm drains connected to a dark urban legend.

The remains of the furnace and iron works that produced the massive Hudson River Chain still stand in the woods of New York.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

The garage at the childhood home of Steve Jobs was a hangout for the founders of Apple, even if they never built computers there.

This restaurant's marvelous musical machines include a self-playing violin.

Eight huge lanterns lining a city street can change color on command.

Anyone can control this glittery light installation with just a phone call.

The hot chocolate here all stems from small, sustainable microproducers in Chiapas and Tabasco.

The museum houses "the most studied meteorite in history," among other geological oddities.

A series of abstract sculptures pop up from an otherworldly volcanic landscape.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

Where layer cakes tower above one’s head and there is never a shortage of icing.

66,000 pieces of art, donated by one of the world's richest men.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Its diverse collection of computers and technology spans the ages.

Built from oil field parts and resembling a teepee, this abandoned mid-century church is hoping for a comeback.

A non-native grove of 241 redwoods in Southern California.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.