The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

Featuring the the longest lift span of any vertical-lift bridge in the world.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

The mall's looks were inspired by the cowboy extras who used to meet up—and cause real trouble—at this Hollywood hub.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

The blinking light atop the iconic landmark has been sending secret messages for decades.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

An L.A. traffic island where the faces of locals have been carved into massive granite eggs.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

Pay your respects to a folk-punk legend.

One of the world's longest murals depicts the history of diversity in Los Angeles.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.