This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

The only road through the heart of Glacier National Park.

An architect's childhood fantasy treehouse made real.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

These azure waters were thought to lead to the Mayan Underworld.

Climb inside an iron crystal magnified 165 billion times its normal size.

Ruins of a Carnegie family mansion on Cumberland Island.

A tribute to Ponce de Leon's supposed quest for eternal youth.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The "lovely red Vega" of the legendary record-settling pilot.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Exact replica of the ancient monument, but much, much lighter.

Abandoned cemetery of the former Psychiatric Hospital of Volterra.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Ancient pueblos built into the base of a natural canyon wall.

A geological mystery on Camelback Mountain.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Granting the right of way to ships over surface traffic since 1917.

A giant Troll lurks under one of Seattle's oldest bridges.