Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

These fantastically named natural pools look like something out of a Scottish myth.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

A 131-year-old wunderkammer of Texas history.

Three hundred years of preserved Spanish colonial history in San Antonio.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

The 40-foot-tall votive candle is the largest of its kind.

The summer home of the largest colony of bats in the world.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

Austin’s local mountain isn’t really a mountain at all.

A free, canine-friendly alternative watering hole near the more famous Barton Springs.

This eclectic Austin curiosity shop is home to all things strange and unusual.

DIY collection of eclectic holdings.

Free public park and gardens filled with peacocks and peahens.

Northern Ireland's Brobdingnagian stepping stones.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A monument to the art of slicing people open.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.