The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Hidden within a Gulf Coast port city is a wonderfully eclectic museum whose beginnings were housed in a bank window.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Mysterious glowing orbs float through the desert night.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Remembering the Alamo with a full-scale replica of the 1836 city.

An emerald-green grotto just a short trip from Austin.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

A private collection of massive steel monsters guarding a Texas pipe works.

Fantastic collection celebrating the final send-off.

This unusual rock formation looks like an apple that has been neatly sliced in half.

The glacier tucked within a New Zealand rainforest.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Hundreds of bras, blowing in the wind.