Chicago’s last original drive-in restaurant is a family-run hot dog joint that started in 1948.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The oldest liquor store in the country is a model of resilience and mischief.

Most historians agree that the so-called "Gentleman Pirate" wasn't much of either of those things.

One of the oldest living oak trees in the Southeast.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The site of the climactic scene from the classic horror film is now a historic landmark.

Ripped apart by a bomb in 1993, the shell of Pablo Escobar's infamous vacation house still stands.

The (usually) serene burial place of the world's most notorious drug lord.

A self-taught astronomer fell in love with the stars and built his own observatory in Colombia.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

Cathedral carved out of salt, located a mile below the Earth's surface.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

The Andean town where every single building is decorated with a brightly colored frieze.

Every Sunday, Bogotá turns 75 miles of its city streets into a bicycle superhighway.

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

Known as the site of 'El Dorado,' this mysterious lake is rumored to hold gold beneath its waters.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

The colonial city's social history is reflected in its fanciful door knockers.

Outdoor escalators and art have helped change what was once a notoriously dangerous part of Medellín.