A registered historic landmark shrouded in unsettling local legends.

Three hundred years of preserved Spanish colonial history in San Antonio.

Two small markers remember the Alamo's feline protectors.

A 131-year-old wunderkammer of Texas history.

Where animatronic singing fish go to retire.

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.

These giant metal horses graze on a hilltop near the Montana highway.

An architect's childhood fantasy treehouse made real.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

This rustic old building is said to be the most photographed barn in America.

The old fire tower is one of the last of its kind in the United States.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Uninhabited islet in the Caribbean is the sanctuary of giant lizards.

This unique collection collects pieces of art etched into thin pieces of stone.

The world's smallest drawbridge.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This pun was simply waiting to come to life, and one defense contractor made it so.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

One of the oldest living oak trees in the Southeast.

Visitors to this library are in for a real-world education in modernist architecture.