Ella Fitzgerald, opera singer Enrico Caruso, and dancer Isadora Duncan all performed in this lavish, supposedly haunted theater.

Hidden in plain sight, this lush garden sits atop one of the most iconic buildings in São Paulo.

A jungle in the heart of São Paulo reminds visitors of what Brazil looked like untouched by man.

This skyscraper once housed weapons during the revolution and was the scene of two brutal crimes that shocked São Paulo society.

This somber statue remembers the enslaved women who were forced to nurse their owners' babies.

This necropolis is home to eclectic funerary art and is the final resting place for much of the city's nobility.

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

This singular art museum in São Paulo is unique inside and out.

This park feels like a lush little jungle full of wildlife nestled within São Paulo.

Brooklyn's most iconic restaurant, resurrected.

At this site, two historic stone bridges spanning the Sing Sing Kill—one right on top of the other.

The gilded vestiges of a sterling department store can still be found in a Brooklyn shopping center.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

19th century cemetery hidden in Brooklyn's Prospect Park.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.

This elaborate tunnel is the first structure composed of cast concrete in the United States.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

The site of a fallen tree that protected Americans from British forces during the American Revolution.

This secluded ruin was once a home for exotic plants.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

This metal eagle one of the final remnants of a newspaper that wanted to keep Brooklyn to Brooklyn.

A hidden architectural treasure in New York's Brooklyn.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.