This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

This memorial to a horrific ship collision sits over a mass grave holding dozens of the victims.

How would you like to dine in the same room where some of the Titanic's victims were embalmed?

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

A swamp that was the site of prehistoric water burials also managed to preserve its corpses for millennia.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A tribute to Ponce de Leon's supposed quest for eternal youth.

The site of a tragic massacre that spawned a multimedia franchise.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Set sail on a small scale.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

The site of the deadly Triangle Shirtwaist Factory Fire.

Visit the monolithic tomb of America's most famous general.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

A dilapidated dock tells the story of Titanic's missed arrival.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A crumbling hospital from the 1850s on Roosevelt Island.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.