A gas station and a state sign commemorating the most famous claims of extraterrestrial abduction.

Even Henry David Thoreau found this glacial pothole irresistible.

A very big rock just plopped down in the New England woods.

Rock face that shares a name with Mary Shelley's famous doctor.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

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

This vessel is believed to be the oldest operating fireboat in the world.

This landmark jazz venue is the oldest continuously running African-American club in the United States.

This restored house is like a time capsule of the president's unconventional inauguration.

This former hub for crafty philosophers was founded by a writer who died aboard the infamous RMS Lusitania.

An elaborate memorial to a man local legend says died of a broken heart.

This Buffalo museum hides an Art Deco gas station designed by Frank Lloyd Wright.

A 19th-century architectural wonder designed by the "father of the skyscraper."

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

The absurd creation is a compulsory destination for selfies in Buffalo.

A forsaken wonder in the middle of the East Side neighborhood.

This lab's maddening silence is good for business but bad for sanity.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

This whimsical fountain pays tribute to Toronto's four-legged friends.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

Elevated freight railway turned wildly successful urban park.

Buffalo's abandoned concrete grain elevators are getting a second life.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.