A drab two-story office space in Delaware is a hidden tax haven for Hillary Clinton, Donald Trump, and over half the Fortune 500 companies.

Singapore's landscaping project is home to 18 incredible Supertrees.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

Watch butterflies take flight before you fly.

An isolated dive site teeming with cnidarians.

These ancient monoliths make up one of the largest archaeological sites in Palau.

Come for the flowers, stay for the bats!

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

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

The famous aviator's final resting place is a study in natural beauty.

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

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 ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

The world’s largest Masonic temple was saved by the White Stripes.

Willy Wonka would love this weird half-a-home.

One of the largest underground systems runs under Canada's largest urban center.