During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

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

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

The last standing piece of a famous Honolulu landmark.

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

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

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Get your footwear fixed inside a 30-foot-long shoe built by an obsessive cobbler in 1947.

Tour part of the Maginot Line bunker system built to defend France against a German invasion.

The New Bedford Whaling Museum in Massachusetts displays what it calls the world's largest ship model.

"We Seceded Where Others Failed."

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

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

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

In this century-old literary safehouse, print is alive and well.

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

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

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

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

An ancient mineral hot spring sits at the middle of this combination cultural center and spa.

This 28-foot-tall milk can contains one of the most whimsical ice cream parlors in town.

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

Interactive museum complete with costumed re-enactors and the only known surviving chest from the Boston Tea Party.