These planks were originally installed to hold the dead.

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

Seat of the Duke and Duchess of Devonshire for centuries.

A much-maligned monument to teetotalism.

Go take a picture with the inventor of the daguerreotype photographic process.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

This lovely pocket park is one of the most under appreciated in D.C.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

The "lovely red Vega" of the legendary record-settling pilot.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

A bit of retro transportation flair preserved in the world's largest department store.

Ride the subways of yesteryear.

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

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

One of the shortest streets in York has an especially odd name.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

An incredibly well-preserved piece of ninth-century Viking poop.