Home to the deepest rift anywhere on Earth.

World War II bunker still standing on the New Jersey beach.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The branches of this sprawling cedar tree are laden with wishes big and small.

One tiny triangular park commemorates the victims of a yellow fever epidemic—many of whom are buried right below the grass.

An out-of-the-way wildlife haven with a rich and storied past of harboring thousands of fugitive slaves, or "Maroons" during the mid 1800s.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

The U.S. Navy’s preposterously detailed mini battleship took 77,000 hours to complete.

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Nuclear waste dump site now an environmental sanctuary.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

The rusting remains of the largest assembled WWII fleet on the West Coast.

The cultural center preserves the history of the Tlingit tribe, who have lived in this Alaska village for more than 10,000 years.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

A historic freight system that found the true gold rush is in tourism.

A museum devoted entirely to hammers has more than 1,400 items on display dating back to the Romans.

The oldest original lighthouse in Alaska that was born out of a tragic shipwreck.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

The former Naval shipyard is open for exploring - mostly.