Hear the quietest sound from across the dome.

An unusual round church in London with a Templar past.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

At 207 feet, one of the world's longest continuous escalators.

Mysterious 500-year-old tapestries depict a unicorn hunt.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

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

New York City's smallest piece of private property.

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

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The headquarters of the famous Yale society.

Shoreline strewn with the remains of ghostly fallen trees.

Stroll through a wonderland of stupendous moss-covered trees.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

A giant Troll lurks under one of Seattle's oldest bridges.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A wall of chewing gum moonlights as collective art.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

This massive redwood tree has a hole in the base big enough to drive through.