A surprising, but overlooked example of geology in the middle of the nation’s capital.

Mysterious installations bring levity and light to a sometimes stodgy city.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

This massive vault of comedic history is no joke.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

An overgrown collection of miniature buildings still stand as evidence of one couple's obsession with The King.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

A bizarre house filled with an astounding array of collections.

Historic funicular railway, believed to be the shortest railroad in the world.

The only recreation of William Shakespeare's indoor playhouse.

Exact replica of the ancient monument, but much, much lighter.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.