Located within a historic park, the beacon is the oldest standing structure in Miami.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The highest bridge in America was built for an almost unnervingly small amount of money.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

A floating cat sanctuary on an Amsterdam canal.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

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

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

2300-year-old Roman road connecting the empire.

His "Lionheart" is entombed separately from the rest of his body.

This bridge was constructed from the rubble of the infamous Bastille.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Indents in the pavement are all that remain from a grisly death machine in Paris.

Cold war icon and onetime "hole" in the iron curtain.

Go surfing on this urban wave, "hacked" by local surfers.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The most visited, and possibly most controversial, museum in Germany.

The prototype for all Nazi concentration camps.