A historic presidential getaway on the continental United States' southernmost island.

A 220-foot deep watery drop-off, filled with marine life.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

This stone commemorates the island's launch into international aviation.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

A wall of chewing gum moonlights as collective art.

One of England's most famous churches hides a pair of little known architectural treasures.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

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

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

This blowhole is supposedly caused by a trapped monster.

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

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

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

A Hawaiian stairway to heaven—that you can't climb.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.