This contorting sculpture is the tallest in San Francisco.

The only visible piece of San Francisco's most famous shipwreck.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

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

A controversial memorial at the place where Captain Cook met his violent end.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

Watch the newest land on the planet form before your eyes.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

This saltwater swimming pool, which is the last of its kind in the United States, is slowly crumbling within sight of multiple high-end beachside hotels.

Race through the maze, get your name on the sign.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

A monument to the man who almost killed Hitler.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

A downtown park built on top of unclaimed graves.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

This quirky collection of furniture also happens to be a public art installation.