A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

A retired subway car stands alone in a field in the middle of Queens.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

The home of the first American-born saint is one of the only curved buildings in New York.

The smallest island in Manhattan is a manmade landfill dominated by a Buddhist peace arch.

The home of aviation trailblazers, in a remote corner of the big city.

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

This abandoned ironworks was once the most important military supplier in America.

San Francisco's first World's Fair, dedicated to the wonders of California.

Only hotel where you can legally launder money.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

This tiny store is your one-stop shop for all sorts of rare and wonderful buttons.

The oldest continuously inhabited street in America.

A controversial memorial at the place where Captain Cook met his violent end.

A medieval replica of King Arthur's legendary table, the Round Table hanging in Winchester Castle was decorated by Henry VIII.

A uniquely lettered street sign marks the corner where the iconic word game was invented.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.