This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

An ancient Egyptian temple in the middle of Madrid, Spain.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A museum dedicated to the history and exploration of both popular music and science fiction.

Eighty million natural history specimens call this gargantuan museum home.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

An enormous illuminated figure dances on the Las Vegas strip.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A tunnel with windows, so you don't miss out on the impressive views.

Legends surround this jagged rock formation in the New Mexico desert.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

The unbelievably opulent home built for an infamous newspaperman.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

The notorious Wild West outlaw was raised in this unassuming abode.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The fairy tale castle of the "fairy-tale king."