The most confusing clock in New York.

The notorious headquarters of a corrupt political machine.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

An interim housing alternative to FEMA trailers that is designed for densely populated areas during recovery and rebuilding following a natural disaster.

Walk into the 19th century without leaving Brooklyn.

This impressive mansion in Vinegar Hill has some mysterious details in its architecture.

A dazzling work by a Pop art legend hangs in one of the world’s busiest subway stations.

Baltimore’s longest row of identical attached houses

This Asian-inspired tower in a lush urban park provides spectacular panoramic views of Baltimore.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

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

The childhood home of one of America's greatest unsung troubadours still stands in a much changed Brooklyn neighborhood.

What was once a vast naval cemetery is now home to nesting birds and pollinating bees.

A decommissioned military complex that's now a modern industrial park.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

A wooden rollercoaster that still delivers a thrill.

Coney Island’s last surviving haunted ride.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

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

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