In 1857, the Mardi Gras parade tradition began at this intersection.

The state's oldest continuously operating museum houses more than 5,000 Civil War artifacts.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

A mysterious find dredged from Louisiana waters.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

The historic tall ship is one of just three of its kind still sailing open waters today.

The tree is thought to be the oldest oak in Texas and was once crowned state champion for its monumental size.

More than 21,000 images fill this overlooked gem of a prehistoric site.

High in the Sacramento Mountains, a facility dedicated to studying the sun.

One of the American Southwest's most extensive collections of Navajo rock art.

The hallowed remains of a 900-year old Ancestral Pueblo great house.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

Home of the International Space Hall of Fame.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An architectural gem nestled into a promontory overlooking a prehistoric landscape.

These rock drawings in the Côa Valley also create an ancient optical illusion.

A micronation on an islet along the coast of a Portuguese island.

A lush oasis full of vibrant plants and striking geometric displays.

A hidden medieval crypt where a famous legend says the devil used to teach black magic.

An unusual but excellent display created in the 1930s as propaganda against the Freemasons.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.