A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

Washington's iconic carousel has a nice piece of Civil Rights history.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

The London statue that imitates passersby.

This one-room cabin where the young colonel slept during the French and Indian War.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

Mesoamerican monoliths and zoomorphic stones covered in royal visages, ancient mythology, and grand celestial events.

This nine-story building is the oldest standing skyscraper in D.C.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

Where Venice's gondolas go for a tune-up.

D.C. once had its own tiny rival to the New York Stock Exchange.

A close look reveals that the Scottish monument is just slightly off-kilter.

A remarkably well preserved tower dating all the way back to the Iron Age.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

This former asylum for Black Americans is haunted by its history of violence and racism.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

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