“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

One of the most well-preserved temples of ancient Egypt.

A collection cataloguing one of the most brutal dictatorships in modern history.

The final resting place of Christopher Columbus - or possibly someone else.

This trio of Dominican cave lakes comprise a colorful biosphere of natural life.

US-50 in Nevada is known as "the Loneliest Road in America," but this earlier iteration of the route is even lonelier.

The site of an underground detonation of a megaton nuclear bomb in the middle of the Mojave Desert.

The farthest you can be in the contiguous U.S. from a McDonald's location.

A homage to the King at the hotel where he revived his career.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

An abandoned bait shop with a front lot filled with storage boxes.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

A piece of John the Baptist in the American heartland.

Tucked away between two 19th-century buildings, this small shop specializes in the macabre.

This abandoned prison castle has become an imposing gallery of graffiti art.

Incredible sculptures inspired by obscure passages from the Bible.

A landscape decorated with enormous skull sculptures.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

Large tower used for simulating radiation of Hiroshima bomb and the tallest object ever relocated.