A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

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

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

This quaint museum lets you take a ride on its antique carousels.

This is the sewer drain that was the inspiration for the opening scene of Stephen King’s classic novel “IT”.

In the middle of the Alaskan wilderness, lies a train trestle to nowhere.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

Breathtaking and huge 430 year old maps of Italy.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

This 18th-century sundial was designed to calculate the date of Easter each year.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

At Bern's Steak House, there's always room for dessert—it's just upstairs.

Inside the Wayne County airport is an amazing collection of lights and sounds.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

A local prank turned town icon.

An antique cemetery in New York, this land is home to any number of famed corpses.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.