The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

This crumbling little graveyard was saved from the undergrowth by concerned veterans.

The only remaining piece of hull of the most decorated US ship of WWII is this giant name plate.

A super-sized promotional trick that is now a D.C. landmark.

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

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Because there's no place like home.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Ingenious bakery opens up the first Cupcake ATM at their flagship location in Beverly Hills.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

What began with a single, 357-pound chunk of the Canyon Diablo meteorite grew to be an impressive collection. 

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

The largest island on the great salt lake is home to curious creatures and strange stories.

Jurassic Park—A Still Life.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

The remains of a 12th-century chapter house in Golden Gate Park.