A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

Tubing through a cave lit with glowworms is a magical underground experience.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Abstract dinosaur models in London.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

The attic of a four-century-old canal house hides a clandestine church.

It houses the remains of a 17th-century version of the Titanic.

Frequent fliers welcome in this airplane hotel.

One of Europe's oldest libraries.

Used as an example in one of the first dictionary entries for "museum" in 1706.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

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

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Monasteries on rock pillars, once accessible only by frayed ropes.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

Recently restored menagerie of Victorian-era beasts.

Jesus' footprints and the first catacombs in the world.

2300-year-old Roman road connecting the empire.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Oriental bazaar in the heart of Sarajevo.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

A lover's walk between hilltop towns, decorated with graffiti love notes.