Flames have been burning within this mountain for more than 2,500 years.

Sip coffee and talk politics at this landmark cafe in Astoria's Little Egypt, a contender for the title of America's first hookah bar.

A lavish 16th-century mansion filled with spectacular staircases, fantastic frescoes, and gorgeous gardens.

This Turkish cave boasts some rather bizarre associations with the King of Mount Olympus.

This remote Moravian mission brought Christianity—as well as devastation—to the Inuit people.

A secret greenspace hides atop a Capitol parking garage.

A historic steam train meanders along one of the most scenic rail routes in Germany's Black Forest.

This stately structure has been abandoned for half a century.

This church carved into the rocks is full of enchanting stone statues.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

It was dubbed the "Garden of Plates" because it's covered in pieces of discarded dishes.

This one-window stand has been home to a giant vat of slowly simmering meats and an array of unique tacos for almost 50 years.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

Once where royalty entertained guests, this opulent table is now one of the longest in the world.

Locals rallied to save this beloved mural after someone mistakenly attempted to cover it.

Remnants of a forgotten 1920s speakeasy and Prohibition-era murals were discovered in its basement.

This Gothic church houses ornate royal tombs and a magnificent gilded altarpiece.

A Caribbean chef recreates his enslaved great-great-grandmother's dishes inside the home she purchased after buying her freedom.

This colonial mining complex is now home to magnificent themed gardens.

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.

This small Spanish village is home to dozens of public paintings meant to trick the eye.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.

A trove of ridiculously valuable prints and manuscripts under one roof.