A rotating cast of guys and dolls in front of a Washington, D.C. building.

A diminutive memorial marks the site of a successful assassination by a right-wing death squad in America's capital.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

Obscure Freemasons still live in D.C.’s largest private residence.

This restaurant has been a haven for D.C.'s LGBTQ community since the 1950s.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

Eat burgers beneath gargantuan taxidermy and thousands of dollar bills in Utah's oldest continuously-operating bar.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

This unassuming passageway played a key role in one of the most important events in U.S. history.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

The boulder on which Alexander Hamilton laid his head after a deadly duel can still be visited on the New Jersey coast.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

A statue representing a lost Roman profession that was vandalized for centuries.

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

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

The footprint of a frustrated devil in Munich's Cathedral.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.