The prototype for all Nazi concentration camps.

This small Bavarian graveyard is filled with empty graves for German soldiers lost during the World Wars.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

Macabre astrological automaton clock dating to the late 1400s.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

This spooky statue sits outside a famous Prague theater.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Steadily reminding Czechia of its past.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

This old-fashioned carhop restaurant gave the world the waffle cone.

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

Dine like an American revolutionary at Colonial Williamsburg.

A collection of vehicles across American military history.

The maritime museum that boasts the largest nautical library in the western hemisphere.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The land is home to swimming ponies and a legendary 18th-century treasure.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

Yo, Adrian!