Abandoned mini-mansions that were once intended for affluent Bangkok families now sit empty.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

A wall of chewing gum moonlights as collective art.

This former coal gasification plant found a curious second life as a popular public park.

A museum dedicated to the history and exploration of both popular music and science fiction.

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

Civil War-era Fort designed to withstand invasion and attack, with tricky traps called "murder holes."

Civil War Fort on an island in the Boston Harbor.

This statue intended for children to enjoy became a minor political spat.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

These whimsical works of art tell the story of the city's past and present.

The bears may be gone, but their old cages can still be found.

The site of Paul Revere's historic two lantern warning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The Boston square dedicated to the dark poet who was born nearby.

An effigy of Vancouver's Gastown neighorhood's namesake.

Bird dung painted this huge boulder which in turn inspired the name of a city.

The mountaintop wind turbine boasts a viewing deck — and a fair share of controversy.