Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

Submerged lava formations create incredible waterworks.

This blowhole is supposedly caused by a trapped monster.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

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.

Hidden behind a YMCA stands the remains of a ceremonial site that dates back hundreds of years, whose ground is still considered sacred to many Hawaiians.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

A unique set of caves that spits waves back out into the ocean.

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

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

This black shoreline is made up of exploded lava particles.

This legendary urban waterfall creates a dazzling display of rainbows.

As the aging humans of this Japanese village die off one local artisan is replacing them with eerie homonculi.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

A network of sandy streets lined with verdant fukugi trees weaves throughout this tiny seaside town.

One of the world's largest tanks mimics the experience of watching rare whale sharks, giant rays, and deep sea creatures from the ocean floor.

A World War II battle site made famous by one man's heroic actions.

The seat of the lost Ryukyu Kingdom has survived numerous fires and wars over the centuries.

Elaborate series of tunnels where traces of mass suicide are still visible.

A bovine sumo match in which both bulls live to fight another day.