Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

New York City's smallest piece of private property.

Try not to get slimed in Tribeca.

Elevated freight railway turned wildly successful urban park.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Something's watching you.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

These "anatomical machines" are only one of the many strange items in this Italian crypt.

A beautiful opera house in the heart of Amazonia has recently restarted performances after a 90-year hiatus.

This striking, two-toned confluence of rivers is visible from space.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A 125-meter long "tribute to the Brazilian people."

Beautiful public park off the beaten path and away from tourists.

Solitary monument dedicated to the beauty of nature.

After millennia of erosion by sand and churning water this Brazilian valley now looks like a lunar fantasy.

The ruins of this Brazilian island prison still bear the scars of the bloody rebellion that closed it down.

What killed this humpback whale is a mystery, but its remains have become legendary.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

The bookstore with bookshelves built into unlikely places.

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

A huge boat-shaped hotel with a blood red pool and other oddities.

The eccentric home of Estevão Silva da Conceição, known as the "Brazilian Gaudí."