The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

What may be Boston's finest Art Deco building, located in the city's Financial District.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

The unusual patterns in this rock formation result from two distinct modes of weathering.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

A playground the size of a city block is a modernist monument to civic values and public housing.

A tunnel with windows, so you don't miss out on the impressive views.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

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

Follow the original medieval paths that wind through this intriguing section of the city.

This network of narrow, medieval passages has the most delightful name.

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

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The heads of two giant mythological water horses honor Scotland's horselord past.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

Where the sleeping monsters of Scotland's oil industry are left to rust.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The world's shortest street was created by an awkwardly placed hotel.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

The most northern place on the mainland of Great Britain.

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