Built for an exposition in 1915, these horticultural displays have stood the test of time.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

A magnificent, reportedly haunted mansion built for a composer by Spiritualists.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

The classic Atari game's iconic aliens have invaded downtown San Diego.

After just one epic test blast, this literal loose cannon proved too explosive for combat.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

This little-known memorial honors those who have donated their bodies to medical training.

This Art-Deco movie palace is the oldest independent cinema in Atlanta.

The greatest collection of New Orleans masking and processional traditions covering everything from Baby Dolls to Skull and Bone gangs.

Conflicting markers on its floor tell a tale of two city centers in San Antonio.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

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

Two small markers remember the Alamo's feline protectors.

Introducing the Green Fairy to her fawning masses.

A small town museum honors local WWII veterans and the queen of pop who put it on the map.

Anne Rice, one of the most influential writers in gothic literature, is buried alongside her husband in a New Orleans cemetery.

A mysterious find dredged from Louisiana waters.

The tallest monument in a historic New Orleans cemetery was prompted by romance and dash of pettiness.

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

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.