Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

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

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This black shoreline is made up of exploded lava particles.

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

This ancient Hawaiian henge may have been an early star chart.

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

What remains of the summer palace of King Kamehameha III.

This blowhole is supposedly caused by a trapped monster.

Guns that have been defending San Francisco since 1904.

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

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

The remains of a ruined mansion memorialize the 1906 earthquake.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Step inside Lucy, the world's largest "elephant."

The land is home to swimming ponies and a legendary 18th-century treasure.

Huge masonic hall in Philadelphia with lavishly themed rooms.

A layered tribute to the work of mosaicist Isaiah Zagar.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

A failed piece of Orientalism has become the proud symbol of a community.

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.