What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Less a museum than a bizarre fantasy world created by artists and engineers.

Elvis's own personal tropical hideaway.

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

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

This Aztec structure remained hidden until the demolition of a supermarket exposed the lost temple.

A barbarous band of serpents guard the bases of these Aztec temples.

The ruins of an ancient temple to the Aztec wind god discovered in the middle of a metro station.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

The only castle in North America to ever house European sovereigns.

Part bookstore, part café, and part forest.

This sculpture meant to honor the bravery of the Indigenous Mapuche people of Chile proved controversial.

A beautiful deserted greenhouse in the middle of a park.

A pocket of Buenos Aires with an unusually high concentration of psychotherapists.

An enigmatic mural hiding in plain sight in one of São Paulo's busiest metro stations.

The pedestrian traffic signals in Brazil's teeming metropolis light up with clues to nearby landmarks.

The platform atop this verdant volcano was built with the help of a royal elephant.

One of Sydney's oldest graveyards hides in plain sight behind a hospital.

This rare effigy of the author spent years lost in storage.

A colorful street named for the legendary Australian rock band.

Unusual finds in this shrine to local law enforcement include a 19th-century vampire-slaying kit.