The ruins of a town wiped out by the second-largest earthquake in recorded history.

The most playful of the life-sized statues that make up Singapore's "People of the River."

A historical convent known for taking in bad luck babies left on its doorstep is now an upscale shopping center.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Home to items never before seen by the public.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

'Cause the fence start shaking, the earth was quaking.

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

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

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

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

Tiki luxury on Nob Hill.

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

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

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

A man-made island in scenic San Francisco Bay.