The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

The remains of a 12th-century chapter house in Golden Gate Park.

One of the best absinthe distilleries in the United States.

Civil War dumping ground for the bodies of terrorized Union sympathizers.

America's first federal monument.

A popular rock that acted as a waymarker for American pioneers.

This giant temperature attraction created some giant electric bills.

Home with Gothic windows featured in a famous painting.

Mysterious lost empire of the Silk Road.

Serving you alcohol with a side of insanity. Also, costumes!

A dilapidated dock tells the story of Titanic's missed arrival.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

Toxic waste disaster that founded the Superfund program.

The ruined remains of an early hydroelectric dam.

Icelandic settlement in Manitoba established in 1875.

I Street Bridge is the heaviest swinging center bridge in the United States.

An ocean in the making, in the Ethiopian desert.

Ethiopia's "smoking mountain" is in one of the hottest regions on the planet and is home to two lava lakes.

The hottest place on the planet.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This attraction was abandoned after the Chernobyl disaster.

Sniff the Titan Arum's rotting flesh.