Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

When you can afford only half a road, you build only half a road.

A nondescript Seattle restaurant inherited a piece of European history.

With nickel-steel armor and three-inch thick bullet resistant windows, FDR's train was a rolling fortress.

Scattered around Atlanta are little doors with big charm.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

This former lieutenant governor's home is brimming with curiosities.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

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

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

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

A psychedelic labyrinth on the San Francisco bay.

Mai Tais and Navy Grog served up in one of the original tiki bars.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

This elaborate towering structure was once famed for its revolutionary height.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

A hidden alley in urban Baltimore is a haven for graffiti artists.

A beautiful South Korean gate and garden in Little Rock honors American Taekwondo.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

This stone is a marker of one millionaire's personal vendetta against gravity.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.