Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

In Egypt's expanding metro area, many of the neighbors are dead.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

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

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

This WWII plane died a quiet death, and is now a garden eel playground.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

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.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

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

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

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

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

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

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

A tunnel of hardened lava along Maui’s famous Road to Hana.

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