California's most comprehensive horticultural library.

Art in the form of a winding, man made crack in stone.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The only rotating bar in New Orleans has been slowly spinning since 1949.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

There are eight natural springs around town, each with a slightly different taste.

Local lore claims this rocky cape hides a lost Aztec treasure.

Iconic red and white plaques show the creative names invented to navigate the city streets.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

The only airport with a people mover system designed by Walt Disney Imagineering.

Once seen as a bit of an eyesore, this sculpture has become a staple of downtown Houston.

This small park features a monumental fountain wall, providing a great photo opportunity in the middle of Houston.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

The world's longest known cave system.

This replica of the Greek structure is in the heart of Nashville.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

This historic cemetery stopped accepting bodies before many Canadian cities were founded.